bigram

This is a table of type bigram and their frequencies. Use it to search & browse the list to learn more about your study carrel.

bigram	frequency
thomomys bottae	206
zygomatic arches	143
local fauna	126
tympanic bullae	123
pocket gophers	119
thomomys talpoides	111
hind foot	106
upper parts	105
upper incisors	99
specimens examined	78
interpterygoid space	67
cratogeomys castanops	67
widely spreading	64
molariform teeth	62
late pliocene	62
type locality	61
natural history	61
zygomatic breadth	55
postauricular patches	54
see fig	54
see measurements	54
geomys bursarius	54
premaxillae posterior	51
every measurement	49
cheek teeth	49
measurement taken	49
enamel plate	48
late pleistocene	47
pocket gopher	47
inflated ventrally	46
posterior wall	44
total length	43
united states	43
alveolar length	41
basilar length	41
enamel plates	40
upper molar	39
original number	38
two columns	38
maxillary teeth	38
topotypes av	37
new subspecies	36
great plains	36
lighter throughout	36
pinkish buff	35
living species	35
raymond hall	35
national museum	33
hind feet	33
upper incisor	33
front feet	33
size smaller	33
new mexico	31
posterior loph	31
lower molars	31
tribe geomyini	30
meade county	30
middle pleistocene	30
early miocene	29
size larger	29
maxillary tooth	29
size medium	29
zygomatic processes	29
early pleistocene	29
genus thomomys	29
salt lake	29
tail white	28
teeth smaller	28
entrant fold	28
subfamily geomyinae	27
cinnamon buff	27
well developed	26
middle pliocene	25
kansas lawrence	25
entrant folds	25
mastoid breadth	25
teeth larger	24
basitemporal fossa	24
biological surveys	24
molar series	24
surveys collection	24
see accounts	24
kansas publications	24
final stages	23
nasals shorter	22
geomys quinni	22
breadth less	22
widely flaring	22
nearly flat	22
less inflated	22
california publ	22
posterior ends	22
grayish black	22
kansas acad	22
river valley	22
subgenus pappogeomys	22
washington acad	22
nasals longer	21
posterior plate	21
thomomys perpallidus	21
interorbital breadth	21
occlusal surface	21
virgin river	20
new pocket	20
mastoid processes	20
lingual side	20
genus geomys	20
north america	20
rostrum narrower	19
nasals long	19
pterygoid hamulae	19
early pliocene	19
masseteric ridge	19
bullae larger	18
adult female	18
upper molars	18
subgenus cratogeomys	18
less widely	18
posterior enamel	18
incisors longer	18
angular process	18
slightly darker	18
foot shorter	18
subspecies type	18
tail shorter	18
breadth across	18
oquirrh mountains	17
bottae albicaudatus	17
darker throughout	17
near topotypes	17
body larger	17
sagittal crest	17
markedly smaller	17
posterior tongues	17
middle miocene	17
carnegie inst	16
rostrum longer	16
tooele county	16
subgenus orthogeomys	16
length length	16
one specimen	16
incisors shorter	16
larger size	16
size small	16
lateral re	16
less angular	16
national park	16
local faunas	16
millard county	16
ranch local	15
tribe dikkomyini	15
right lower	15
closely resembles	15
second molars	15
bullae smaller	15
posterior surface	15
paroccipital processes	15
squamosal breadth	15
nearly parallel	15
across mastoid	15
lacrimal processes	15
nasals short	15
skull smaller	15
new species	15
bottae aureiventris	15
chronologic range	15
geographic variation	14
san juan	14
orthogeomys grandis	14
goldman thomomys	14
south dakota	14
nasals less	14
lake bonneville	14
see account	14
great salt	14
slightly smaller	14
throughout life	14
bottae centralis	14
phyletic development	14
geomys lutescens	14
zion national	14
geomys tobinensis	14
isolated teeth	14
pleistocene deposits	14
width across	14
zygomatic arch	13
enamel investment	13
adult males	13
zygomatic process	13
enamel pattern	13
publications museum	13
fossil record	13
bullae less	13
washington publ	13
lambdoidal suture	13
springs local	13
two subspecies	13
rostrum shorter	13
widest posteriorly	13
states national	13
geographic range	13
referred species	13
pappogeomys bulleri	13
cranial details	13
kansas state	13
ancestral stock	12
lower teeth	12
history volume	12
highly specialized	12
kansas printed	12
talpoides uinta	12
genus pappogeomys	12
upper teeth	12
two specimens	12
family geomyidae	12
posterior walls	12
state printer	12
rostrum relatively	12
mastoid bullae	12
dorsal surface	12
printer topeka	12
anterior plate	12
adult females	12
relatively large	12
lower jaw	11
beaver county	11
tribe thomomyini	11
darker color	11
lawrence university	11
parts darker	11
geomys garbanii	11
history editors	11
much larger	11
stansbury island	11
bicolumnar pattern	11
wasatch mountains	11
thomomys umbrinus	11
pine valley	11
san josecito	11
zygomata less	11
well inflated	11
per cent	11
miles west	11
relatively wider	11
arches weaker	11
subgenus thomomys	11
subfamily entoptychinae	11
final stage	11
hay springs	11
occlusal pattern	11
left upper	11
uinta mountains	11
distal half	11
labial side	11
space narrowly	11
washington county	11
colorado springs	11
josecito cave	11
total number	11
nasals greater	11
lateral plates	11
arches heavier	10
ancestral lineage	10
pale pinkish	10
slightly larger	10
relatively narrow	10
costa rica	10
provincial age	10
wisconsin deposits	10
modern pocket	10
arches shorter	10
tail longer	10
interorbital constriction	10
horse creek	10
anterior face	10
palatal pits	10
two genera	10
perpallidus aureus	10
single column	10
truncate posteriorly	10
mastoidal breadth	10
third upper	10
colorado plateau	10
rostrum long	10
foot smaller	10
distal third	10
strongly recurved	10
ascending processes	10
size large	10
less specialized	10
buis ranch	10
relatively longer	10
orthogeomys hispidus	10
moderately inflated	10
relatively long	10
entrant angles	10
nearly straight	10
see discussion	10
breadth greater	10
relatively broad	10
primitive morphotype	10
skull larger	10
patches larger	10
lower molar	9
temporal ridges	9
winter pelage	9
curtis ranch	9
ventral surface	9
pleistocene records	9
pleistocene lake	9
cave local	9
foot longer	9
underparts pale	9
foramen magnum	9
incisors long	9
underparts paler	9
bottae aureus	9
named races	9
ferd voiland	9
smaller size	9
sevier river	9
lower jaws	9
southwestern kansas	9
antelope island	9
western united	9
dilated distally	9
feet white	9
western north	9
parts paler	9
markedly lighter	9
shaped rather	9
closely resemble	9
among named	9
michigan acad	9
transverse enamel	9
geomys paenebursarius	9
initial stages	9
less rufous	9
sierra madre	9
juab county	9
garfield county	9
genus pliogeomys	9
patches black	9
carbon county	9
closely related	9
nasals truncate	9
arches weak	9
parts cinnamon	9
recent species	9
genus dikkomys	9
kansas publ	8
series extension	8
sayal brown	8
relatively short	8
two species	8
bursarius majusculus	8
thomomys townsendii	8
san luis	8
lower premolar	8
jordan river	8
completely across	8
breadth mastoid	8
three specimens	8
nasals length	8
modern genera	8
lighter color	8
miles south	8
lower miocene	8
enamel fossette	8
labial re	8
rostrum broader	8
pectoral regions	8
foot basilar	8
nasals rounded	8
weakly developed	8
breadth alveolar	8
rostrum wider	8
bursarius lutescens	8
breadth column	8
anterior surface	8
nasals zygomatic	8
posterior margins	8
across zygomata	8
tertiary geoflora	8
genus pliosaccomys	8
incisors short	8
san pitch	8
species thomomys	8
cratogeomys pappogeomys	8
lake city	8
rexroad local	8
inclined anterodorsally	8
incisors narrower	8
cranial characters	8
fossil lake	8
convex dorsally	8
rostrum breadth	8
la plata	8
byron leonard	8
closely allied	8
two new	8
angular processes	8
patches smaller	8
see tables	8
patches small	8
plateau province	8
length averaging	8
two lophs	8
premax post	8
relatively smaller	8
breadth interorbital	8
creek local	8
body smaller	8
unless otherwise	8
central utah	8
et al	8
tail length	8
bullae well	8
subgenus heterogeomys	8
don martin	8
bottae absonus	8
teeth small	8
approximately equal	7
lingual re	7
beaver mountains	7
dorsal stripe	7
mummy brown	7
colorado river	7
summit county	7
underparts pinkish	7
living genera	7
wah wah	7
wider across	7
posterior columns	7
adult male	7
bottae tivius	7
nasals actually	7
castanops subsimus	7
living geomyini	7
john day	7
late miocene	7
distinctive characters	7
central plateau	7
bernardo villa	7
fossorial adaptations	7
saw rock	7
papers michigan	7
large size	7
western mainland	7
widely separated	7
modern geomyines	7
rounded posteriorly	7
harper county	7
least interorbital	7
subgenus pleisothomomys	7
upper premolar	7
pale ochraceous	7
pliocene species	7
posterior border	7
american museum	7
primitive features	7
geographic ranges	7
median spicule	7
arkansas city	7
third lower	7
late kansan	7
colorado piedmont	7
liomys irroratus	7
posterior face	7
outer re	7
enamel bands	7
mammalian fauna	7
southern rocky	7
kansas mammals	7
dolichocephalic skull	7
rock canyon	7
one side	7
aureus bailey	7
tooth cave	7
teeth relatively	7
molariform dentition	7
upper rosebud	7
name thomomys	7
benson local	7
northern part	7
upper molariform	7
foot larger	7
otherwise indicated	7
nasals straight	7
beaverdam wash	7
durrant thomomys	7
bullae moderately	7
castanops excelsus	7
spreading posteriorly	7
posterior plates	7
bottae wahwahensis	7
additional records	7
geomys bisulcatus	7
color nomenclature	7
main line	7
teeth large	7
two transverse	7
family family	7
vertical depth	7
great basin	7
fish lake	7
modern lineages	7
juan county	7
premaxillae narrower	7
interorbital region	7
two lateral	7
north american	7
auditory bullae	7
lake county	7
pliosaccomys dubius	7
small size	7
color standards	7
colorado college	6
species geomys	6
less buffy	6
lower tooth	6
size markedly	6
two grooves	6
tail long	6
temporal muscles	6
supraoccipital posterior	6
named subspecies	6
skull generalized	6
extreme western	6
slightly lighter	6
following features	6
relatively small	6
shown within	6
summer pelage	6
occlusal surfaces	6
nasals relatively	6
first upper	6
projecting anteriorly	6
ochraceous buff	6
slightly less	6
pole mtn	6
additional wear	6
primitive biprismatic	6
el paso	6
readily distinguished	6
subgenus macrogeomys	6
without trace	6
castanops bullatus	6
field work	6
much lighter	6
talpoides clusius	6
greatest height	6
canyon local	6
geomys geomys	6
cochise county	6
posterior part	6
central coahuila	6
pleistocene species	6
dorsal profile	6
upper pliocene	6
sordidulus differs	6
foot averaging	6
iron county	6
miles east	6
palate shorter	6
anterior wall	6
across posterior	6
pleistocene mammals	6
dikkomys matthewi	6
show intergradation	6
geomys parvidens	6
utah county	6
thomomys aureus	6
see wood	6
pleistocene radiation	6
spiny pocket	6
bullae large	6
thomomys fossor	6
geomys pinetis	6
cave deposits	6
talpoides moorei	6
interparietal larger	6
topotypical specimens	6
dikkomys woodi	6
easily distinguished	6
irvingtonian species	6
higher elevations	6
bursarius industrius	6
continuous enamel	6
western kansas	6
posterior extensions	6
upper cheek	6
high mountains	6
bullae inflated	6
mississippi valley	6
genus zygogeomys	6
incisors projecting	6
thomomys wied	6
one species	6
barber co	6
late oligocene	6
lingual plate	6
frontomaxillary suture	6
basioccipital narrow	6
san pedro	6
san miguel	6
light ochraceous	6
less massive	6
enamel cap	6
loup river	6
relatively wide	6
patches grayish	6
smiths valley	6
missouri valley	6
mus bursarius	6
ears longer	6
occipitonasal length	6
lingual end	6
wilson volume	6
distal part	6
phyletic trends	6
ears small	6
bottae planirostris	6
deeply emarginate	6
pacific coast	6
masseter muscle	6
probably near	6
valley fauna	6
southwestern coahuila	5
anterior enamel	5
experiment station	5
color terms	5
geographic distribution	5
dorsal view	5
seems unlikely	5
upper mississippi	5
cache county	5
mississippi river	5
slight inflection	5
least depth	5
palatine foramina	5
heavily ridged	5
bottae trumbullensis	5
enamel blades	5
aureus allen	5
high degree	5
wolf creek	5
darker dorsally	5
original description	5
modern species	5
first molar	5
talpoides oquirrhensis	5
talpoides rostralis	5
premaxillae long	5
third molars	5
state agric	5
geomys breviceps	5
attenuatus differs	5
del tigre	5
type series	5
anterior palatine	5
irvingtonian provincial	5
box elder	5
anterior border	5
cumberland cave	5
kansas museum	5
buckthorn brown	5
enamel patterns	5
daggett county	5
inguinal region	5
trend toward	5
fossa absent	5
see comparisons	5
markedly less	5
much darker	5
vertebrate fauna	5
tobin local	5
took place	5
bursarius major	5
bullae actually	5
tail short	5
first two	5
basioccipital wide	5
rostrum narrow	5
thomomys bulbivorus	5
thomomys quadratus	5
early stages	5
ancestral morphotype	5
sanpete county	5
inner re	5
sangre de	5
cudahy local	5
kansas university	5
three miles	5
miles north	5
castanops convexus	5
catalogue number	5
hibbard et	5
new york	5
underparts darker	5
west side	5
talpoides fossor	5
long axis	5
bottae stansburyi	5
literature cited	5
lower harrison	5
south side	5
orthogeomys cherriei	5
length less	5
newly named	5
medium height	5
complete loss	5
pliogeomys buisi	5
larger throughout	5
pacific ocean	5
castanops subnubilus	5
jucundus differs	5
genus cratogeomys	5
cratogeomys gymnurus	5
size slightly	5
mesopterygoid fossa	5
extreme southwestern	5
hairs plumbeous	5
thomomys thomomys	5
genus orthogeomys	5
upper maxillary	5
condylobasal length	5
cinnamon brown	5
late clarendonian	5
finely mixed	5
two prisms	5
small pocket	5
sierra del	5
university endowment	5
parts near	5
labial plate	5
incisors wider	5
may actually	5
see hibbard	5
butler springs	5
see table	5
logan canyon	5
five miles	5
sevier county	5
head dusky	5
described geomys	5
angular skulls	5
eight miles	5
fish springs	5
de cristo	5
masseteric fossa	5
rexroad fauna	5
thomomys fulvus	5
valley local	5
lutescens merriam	5
san diego	5
enclosed within	5
processes small	5
pleistocene age	5
cutting blades	5
western utah	5
rock springs	5
aftonian interglacial	5
cranial features	5
river drainage	5
uintah county	5
talpoides parowanensis	5
endowment association	5
rio arriba	5
inferior border	5
castanops group	5
illinoian deposits	5
bottae occurring	5
central jalisco	5
kansan glaciation	5
fishers peak	5
cerro viejo	5
lateral inflections	5
pleisothomomys gidley	5
raton section	5
biprismatic pattern	5
nasals emarginate	5
upper pleistocene	5
southern part	5
late wisconsin	5
temporal impressions	5
parietal ridges	5
parallel instead	5
coronoid process	5
rose canyon	5
posterior margin	5
bursarius shaw	5
head grayish	5
bottae lenis	5
posteriorly rather	5
far south	5
old individuals	5
recent mammals	5
grand county	5
lateral expansion	5
raft river	5
adjacent subspecies	5
lower dentition	5
state board	5
skull small	5
rocky mountain	5
divergent posteriorly	5
feet longer	5
bottae howelli	5
platycephalic specializations	5
tertiary flora	5
name geomys	5
become united	5
wider posteriorly	5
pappogeomys castanops	5
river formation	5
mastoidal breadths	5
deep river	5
light buff	5
least width	5
conard fissure	5
primitive genus	5
mesa verde	5
latter race	5
deeply pigmented	5
de las	5
modern groups	4
fort bridger	4
occipital condyles	4
carnegie museum	4
vallecito creek	4
known species	4
late cenozoic	4
significantly larger	4
isolated enamel	4
otis basin	4
greatest distance	4
completely lost	4
foot small	4
maxillae heavy	4
skull large	4
river mountains	4
ventral view	4
douglas county	4
also known	4
north side	4
papers mus	4
gymnurus tellus	4
black hairs	4
see remarks	4
centralis hall	4
lower elevations	4
pine bluffs	4
elder county	4
exact locality	4
subfamily subfamily	4
diagnostic characters	4
mainland form	4
less procumbent	4
three new	4
bottae dissimilis	4
east entrance	4
lower pliocene	4
mountainous country	4
third molar	4
maxillae heavier	4
dental specializations	4
onaqui mountains	4
slightly narrower	4
may also	4
glacial maximum	4
hamulae long	4
less whitish	4
bottae osgoodi	4
merriam thomomys	4
molars larger	4
earliest known	4
flared distally	4
tooth row	4
additional material	4
talpoides bulbivorus	4
clear creek	4
within zygomatic	4
loup fork	4
planing action	4
anteroposteriorly compressed	4
pagosa springs	4
posterior lophs	4
gave rise	4
space enclosed	4
variable subspecies	4
pale buff	4
primitive bicolumnar	4
relatively larger	4
across zygomatic	4
one end	4
greenwood county	4
railroad route	4
zygogeomys trichopus	4
closest geographically	4
ellis county	4
sierra guadalupe	4
saunders local	4
skull averaging	4
western nebraska	4
greatest length	4
southwestern part	4
like planirostris	4
present account	4
large series	4
late blancan	4
elliptical column	4
two sides	4
cheeks dusky	4
hardeman county	4
santa clara	4
shaped pattern	4
anteromedial angle	4
family saccomyidae	4
capitalized color	4
la veta	4
primitive pattern	4
medicine bow	4
eastern utah	4
thomomys uinta	4
nasal patch	4
thomomys vetus	4
arches nearly	4
north amer	4
primitive characters	4
howelli goldman	4
primitive geomyines	4
space widely	4
space moderately	4
medially concave	4
fox canyon	4
madre oriental	4
sierra nevada	4
desert range	4
much heavier	4
intermontane valleys	4
plata co	4
nearest geographically	4
anterior prism	4
even though	4
zygomatic plate	4
anteroposterior compression	4
two kinds	4
deep creek	4
bowed outward	4
lutescens jugossicularis	4
enamel loop	4
nw ocampo	4
rancholabrean provincial	4
distance across	4
range experiment	4
los angeles	4
arkansas river	4
major davis	4
less brownish	4
lisco local	4
first stages	4
talpoides gracilis	4
much smaller	4
right upper	4
mcpherson county	4
central colorado	4
southern utah	4
upper tooth	4
greatly inflated	4
stansbury mountains	4
pocket mouse	4
talpoides occurring	4
pitch river	4
northwestern coahuila	4
southeastern coahuila	4
columbia river	4
genus entoptychus	4
dorsal depression	4
platycephalic skull	4
light buffy	4
sioux county	4
spinous process	4
first time	4
molariform tooth	4
bottae birdseyei	4
inner margin	4
luis valley	4
present study	4
interparietal smaller	4
lincoln county	4
colorado mus	4
bottae sevieri	4
board agric	4
cent longer	4
cowley co	4
color darker	4
las animas	4
generalized type	4
rostrum column	4
gymnurus group	4
zygogeomys geomys	4
emarginate posteriorly	4
equal age	4
dorsal stripes	4
detailed description	4
adjacent areas	4
earlier stages	4
anterior margin	4
subspecific status	4
palate narrow	4
feet long	4
actual specimens	4
smaller throughout	4
slightly concave	4
shannon county	4
college publ	4
auditory bulla	4
middorsal region	4
less blackish	4
row shorter	4
skull slightly	4
castanops clarkii	4
trout creek	4
pits deep	4
north platte	4
cratogeomys zinseri	4
pleistocene fauna	4
early blancan	4
equal signs	4
sand draw	4
genera orthogeomys	4
castanops consitus	4
upper dentition	4
bold text	4
bursarius bursarius	4
grand junction	4
subspecies thomomys	4
enamel blade	4
th bienn	4
orthogeomys heterodus	4
wasatchensis see	4
molariform dentitions	4
middle loup	4
bottae robustus	4
orthogeomys onerosus	4
farther laterally	4
mountain form	4
dentition light	4
fossil beds	4
mental foramen	4
majusculus differs	4
bottae convexus	4
browns peak	4
averaging larger	4
gymnurus species	4
kane county	4
ustulatus differs	4
la jara	4
field mus	4
la ventura	4
relatively narrower	4
bottae virgineus	4
single elliptical	4
southern end	4
bottae bonnevillei	4
bullae small	4
less ridged	4
vernon bailey	4
castanops sordidulus	4
charles mesa	4
second upper	4
southeastern united	4
atchison county	4
columns unite	4
full species	4
recent specimens	4
mandibular tooth	4
medium size	4
southwestern united	4
utah specimens	4
settlement creek	4
rocky mountains	4
simple distally	4
creek mountains	4
pappogeomys alcorni	4
averaging slightly	4
early arikareean	4
processes larger	4
platte river	4
pratt county	4
nasals forming	4
anterior plates	4
sphenorbital fissure	4
eastern side	4
kansas mus	4
pappogeomys merriam	4
sw lawrence	4
thomomys clusius	4
miocene age	4
complete enamel	4
pronounced heel	4
talpoides levis	4
pliocene age	4
new pleistocene	4
maxillary arm	4
arid conditions	4
dorsal frontomaxillary	4
western part	4
primitive species	4
arches widely	4
henrys fork	4
bottae nesophilus	4
lingual fourth	4
subsimus differs	4
near agate	4
interparietal wedge	4
pliocene deposits	4
desert plains	4
jugossicularis hooper	4
well defined	4
latest middle	4
castanops planifrons	4
common ancestor	4
markedly greater	4
occlusal length	4
consitus differs	4
greatest width	4
cedar city	4
cranial dimensions	4
majusculus swenk	4
extinct species	4
generally darker	4
orthogeomys merriam	4
sheeprock mountains	4
late illinoian	4
navajo mountain	4
northern limits	4
infraorbital canal	4
columns joined	4
mandible stout	4
tail whitish	4
length column	4
incisors smaller	4
irvingtonian age	4
pigmented pinnae	4
four genera	4
eleven measurements	4
wah mountains	4
shallow re	4
shallowly emarginate	4
mountain province	4
enamel band	3
wounded knee	3
bald peak	3
arches moderately	3
probably deposited	3
became adapted	3
talpoides macrotis	3
caxton printers	3
dubius wilson	3
taxonomic status	3
joined near	3
measurements taken	3
fossorial life	3
se arkansas	3
color slightly	3
pliosaccomys wilsoni	3
tellus differs	3
specimens collected	3
three plates	3
premaxillae short	3
biprismatic patterns	3
brown instead	3
closely approximates	3
bottae levidensis	3
clover creek	3
paso co	3
specific identification	3
strongly inclined	3
colorado state	3
late hemingfordian	3
nose grayish	3
rexroad formation	3
low pass	3
northeastern coahuila	3
conspicuous heel	3
nasals slightly	3
genera geomys	3
teeth hypsodont	3
parts measured	3
scott county	3
extinct genera	3
blancan age	3
skull decidedly	3
alveolar level	3
mexican plateau	3
lateral view	3
maxillary suture	3
recent geomys	3
santa cruz	3
arriba co	3
becoming abruptly	3
known subspecies	3
creek cave	3
bear creek	3
parvidens brown	3
compare favorably	3
four lineages	3
eastern millard	3
dolichocephalic specializations	3
berends local	3
first phases	3
hall university	3
rostrum heavier	3
willow creek	3
frontals present	3
females compared	3
magnum larger	3
indicates intergradation	3
least specialized	3
living geomyids	3
castanops ustulatus	3
biprismatic throughout	3
posterior surfaces	3
skull narrower	3
cratogeomys merriam	3
plains province	3
moderately heavy	3
foot short	3
interparietal relatively	3
one adult	3
sandy soils	3
early tertiary	3
hamilton county	3
basioccipital wider	3
another subspecies	3
talpoides pygmaeus	3
bulleri albinasus	3
intermediate stage	3
wasatch county	3
hudspeth county	3
small subspecies	3
southwestern colorado	3
castanops jucundus	3
narrow isthmus	3
west slope	3
gopher remains	3
parietal crests	3
first known	3
hall thomomys	3
teeth much	3
extending farther	3
becoming progressively	3
thomomys monticola	3
aureiventris hall	3
monographic revision	3
entrant angle	3
san antonio	3
antonio de	3
subspecies found	3
interparietal subcircular	3
individuals averaged	3
pliocene genus	3
la sal	3
generic names	3
generic identification	3
three views	3
young individual	3
slightly paler	3
cudahy fauna	3
mammals collected	3
race nearest	3
suture medially	3
rostralis differs	3
butler county	3
shearing action	3
lower premolars	3
living pocket	3
pattern developed	3
rodent fauna	3
subtriangular pattern	3
different species	3
eastern part	3
suitable soils	3
strong brown	3
six subspecies	3
yarmouthian interglacial	3
breviceps llanensis	3
area today	3
previous account	3
rounded proximally	3
patterns based	3
arches wider	3
high crest	3
especially elongated	3
park point	3
earliest pleistocene	3
pleistocene times	3
barely present	3
light brown	3
industrius differs	3
grayish color	3
greatest amount	3
high valleys	3
suture present	3
ne ludell	3
trego county	3
southwestern utah	3
new tribe	3
monthly mag	3
animals belonging	3
pawnee county	3
advanced subgenus	3
arches heavy	3
fossorial adaptation	3
rostral fragment	3
enough time	3
dark dorsal	3
pits shallower	3
buffy instead	3
pappogeomys merriami	3
miles southwest	3
bullae relatively	3
lake local	3
miocene genus	3
de mascota	3
four specimens	3
late tertiary	3
interparietal pentagonal	3
lambdoidal crest	3
color paler	3
allen thomomys	3
dentition smaller	3
nominal recognition	3
premaxillae shorter	3
le conte	3
douglas co	3
skulls show	3
structural changes	3
locality unknown	3
relatively deep	3
may prove	3
group thomomys	3
ranch beds	3
known genera	3
posterior region	3
bottae minimus	3
bottae pervagus	3
eastern kansas	3
wasatch plateau	3
state university	3
comparative materials	3
near portland	3
smoothly rounded	3
color throughout	3
wisconsin age	3
now known	3
bottae internatus	3
green river	3
feet whitish	3
type specimen	3
less advanced	3
cherriei costaricensis	3
slightly longer	3
adjoining subspecies	3
nerterogeomys zygogeomys	3
field notes	3
snake river	3
nose dusky	3
strongly dolichocephalic	3
anteriorly rather	3
coniferous forest	3
donley county	3
las alazanas	3
farther west	3
southern california	3
davis county	3
extreme northern	3
essentially like	3
pattern becoming	3
combined lengths	3
subgeneric recognition	3
right angles	3
without lateral	3
within underscores	3
pattern characteristic	3
shasta county	3
squamosal arm	3
fork canyon	3
arches relatively	3
bullae slightly	3
spring glen	3
reddish yellow	3
macrogeomys merriam	3
hamulae heavy	3
well marked	3
occurs also	3
four new	3
russell university	3
proportionately wider	3
adaptive radiation	3
moderately convex	3
worn pelage	3
postcranial skeleton	3
modern geomyids	3
arches neither	3
dikkomys wood	3
probably evolved	3
beach levels	3
distinct subspecies	3
specimens probably	3
premaxillae wider	3
anteroexternal inflection	3
buffy white	3
wah springs	3
early illinoian	3
camp thomas	3
zygomata slender	3
plate may	3
narrower rostrum	3
erupted tooth	3
bottae nicholi	3
pinkish cinnamon	3
nephi valley	3
persistently biprismatic	3
foot large	3
deer park	3
talpoides ocius	3
bottae alexandrae	3
anterolateral angle	3
parts pinkish	3
dark brown	3
single species	3
heterogeomys merriam	3
general cepeda	3
heavily pigmented	3
gracilis durrant	3
weakly constructed	3
generic name	3
emery county	3
bulleri thomas	3
recurved upper	3
atratus differs	3
bullae much	3
breadth actually	3
farther apart	3
suture markedly	3
tentatively referred	3
unworn enamel	3
text august	3
dissimilis goldman	3
mckay reservoir	3
mountain range	3
postglenoid notch	3
tendency toward	3
rostrum averaging	3
thomomyini lineage	3
scudderi hay	3
incertae sedis	3
snuff brown	3
teachers college	3
little valley	3
barber county	3
beaverdam mountains	3
interorbital area	3
differ greatly	3
southward certainly	3
patches large	3
levis goldman	3
bursarius jugossicularis	3
parts sayal	3
northwestern corner	3
two adult	3
mountain ranges	3
accounts beyond	3
early evolution	3
specimens show	3
body slightly	3
suture concave	3
mirror images	3
living geomys	3
colored hairs	3
fossil geomyids	3
group geomys	3
state mus	3
wisconsin glaciation	3
lightly pigmented	3
incisors narrow	3
ramus bearing	3
entoptychid radiation	3
doby springs	3
sun city	3
pearlette ash	3
sal mountains	3
entire surface	3
dentine tracts	3
tail column	3
projecting higher	3
spreading zygomatic	3
partially biprismatic	3
superfamily geomyoidea	3
miocene deposits	3
atlantic coast	3
teeth rooted	3
size throughout	3
closer affinities	3
italicized text	3
uniting first	3
henry mountains	3
foot slightly	3
slight depression	3
within equal	3
oak city	3
potter creek	3
median line	3
usually absent	3
four localities	3
ute peak	3
described subspecies	3
tail covered	3
book cliffs	3
jugals nearly	3
several localities	3
slenderer skull	3
castanops found	3
adjacent parts	3
central part	3
two lineages	3
patches medium	3
posterior end	3
shaped interpterygoid	3
wahwahensis differs	3
extreme northwestern	3
eastern mainland	3
quinni mcgrew	3
nasals column	3
seminole field	3
douglas fir	3
lambdoidal crests	3
near talpa	3
bilophodont pattern	3
lighter colored	3
fremont co	3
geomyidae geomyidae	3
bryce mus	3
pleistocene mammalian	3
lower pleistocene	3
field columb	3
michigan mus	3
palate narrower	3
draw local	3
buff mixed	3
harrison deposits	3
processes smaller	3
anterior lophid	3
see goldman	3
highest level	3
eastern united	3
dentition lighter	3
parts slightly	3
new spiny	3
grandis guerrerensis	3
resemble uinta	3
pleistocene vertebrates	3
one genus	3
pliocene ancestor	3
main lineage	3
pitch mountains	3
cheeks grayish	3
college bull	3
markedly larger	3
castanops species	3
markedly weaker	3
generalized skull	3
osgoodi goldman	3
buisi hibbard	3
taken except	3
additional collecting	3
skull smooth	3
rostrum short	3
north prong	3
lower cheek	3
roughly quadrangular	3
wells ranch	3
lago sayula	3
extreme measurements	3
smaller species	3
san francisco	3
longer body	3
alveolar border	3
basin local	3
interrupted enamel	3
reported geomys	3
series shorter	3
uniformly lighter	3
external opening	3
inguinal regions	3
dirty devil	3
pappogeomys subgenus	3
known range	3
county south	3
recovered also	3
albicaudatus hall	3
concave laterally	3
general configuration	3
pointed ventrally	3
pappogeomys tylorhinus	3
ear shorter	3
fossils may	3
final pattern	3
early geomyines	3
see figs	3
bottae group	3
immediate ancestors	3
arches markedly	3
potomacensis gidley	3
bilophate pattern	3
bottae cultellus	3
ancient lake	3
young specimens	3
significantly longer	3
capitalized terms	3
along median	3
printing office	3
approximately distal	3
east side	3
second molar	3
north park	3
beds along	3
fossil sites	3
northern arkansas	3
premaxillae relatively	3
depression present	3
fairly robust	3
broad isthmus	3
impressions usually	3
ancestral tribe	3
mountains south	3
persimilis hay	3
foot column	3
specialized entoptychines	3
extreme eastern	3
major differs	3
convex medially	3
one anterior	3
spanish fork	3
molars smaller	3
state teachers	3
two miles	3
parts vary	3
tail relatively	3
lake la	3
eastward certainly	3
species will	3
upper bercerra	3
series longer	3
less yellowish	3
geomys orthogeomys	3
brown hairs	3
bonnevillei differs	3
interparietal generally	3
citrus county	3
lingual edge	3
castanops goldmani	3
entire dorsal	3
geomys rafinesque	3
maxillae greater	3
lingual inflection	3
space lyre	3
specimen taken	3
near camp	3
four subspecies	3
posterior column	3
parowanensis goldman	3
two molars	3
geomys persimilis	3
burnet cave	3
pliocene specimens	3
rostrum broad	3
wide across	3
either side	3
nearly indistinguishable	3
newly erupted	3
bullae markedly	3
middle part	3
reflected laterally	3
pronounced fossorial	3
erroneously referred	3
park local	3
reddish brown	3
miocene geomyids	3
less pinkish	3
schultz et	3
acutus differs	3
decidedly smaller	3
typical specimens	3
wisconsin drift	3
moorei goldman	3
sw arkansas	3
two upper	3
parts light	3
summit counties	3
technical name	3
distinctly different	3
even greater	2
small area	2
arches robust	2
although differing	2
cutting blade	2
gymnurus merriam	2
processes weaker	2
geomys colonus	2
pervagus resembles	2
camden county	2
angular part	2
sagittal plane	2
subgenera pappogeomys	2
ne tala	2
talpoides umbrinus	2
show close	2
show less	2
rocky soils	2
grangerimus grangerimus	2
tribe genotype	2
primitive traits	2
first glance	2
somewhat lyre	2
tail averaging	2
fehlman ranch	2
specialized trends	2
deposits near	2
geomys floridanus	2
small species	2
south slopes	2
incisor bisulcate	2
found along	2
palest specimens	2
primitive genera	2
braincase less	2
nasals arched	2
dikkomys dikkomys	2
mammals made	2
generic accounts	2
one family	2
sides pinkish	2
desert shrubs	2
jugal bone	2
texas jour	2
interior part	2
impart appearance	2
fir zone	2
crests perpendicular	2
anterior column	2
fossor allen	2
classification family	2
brownish hairs	2
two subgenera	2
mostly isolated	2
distinct anteroexternal	2
persisted throughout	2
space broadly	2
coastal plains	2
advanced lineages	2
seward county	2
given rise	2
range probably	2
nasals posteriorly	2
grass zones	2
vetus davis	2
subgeneric rank	2
bottae occur	2
ranger station	2
new forms	2
agua nueva	2
length na	2
vinaceous cinnamon	2
posteriorly instead	2
southwestern nuevo	2
lower part	2
geomys hispidus	2
northern utah	2
north end	2
known races	2
south willow	2
surrounding valleys	2
takes place	2
creek canyon	2
superficial masseter	2
near south	2
will merit	2
allegany county	2
junior synonym	2
escalante mountains	2
nearly white	2
deeply serrated	2
yellowish color	2
cratogeomys diverged	2
transverse valley	2
southern colorado	2
transmitted august	2
brussels brown	2
subspecies albicaudatus	2
continued total	2
full specific	2
accorded alexandrae	2
first unite	2
britts meadow	2
bursarius species	2
pronounced vertical	2
slightly convex	2
pinetis species	2
occlusal configuration	2
saccomyidae geomyidae	2
contractus differs	2
relatively isolated	2
fairly wide	2
nasofrontal region	2
farther north	2
growing cheek	2
numerous subspecies	2
utah animals	2
remarkably elongated	2
southern parts	2
later stages	2
several large	2
becoming monoprismatic	2
loph usually	2
pervagus merriam	2
thomomys rufescens	2
saunders geomys	2
half way	2
marked like	2
anterior projection	2
late aftonian	2
reported specimens	2
warm buff	2
denton county	2
ridge weakly	2
interparietal large	2
bowed medially	2
houserock valley	2
lateral enamel	2
four measurements	2
nevada de	2
lingual valley	2
almost touching	2
thank drs	2
lateral coalescence	2
geographic grounds	2
seven characters	2
less developed	2
feet shorter	2
canadian creek	2
two localities	2
also see	2
ocius merriam	2
inner border	2
prater canyon	2
gymnoptychus cope	2
coast region	2
transmitted may	2
heteromyidae heteromyidae	2
ravus differs	2
immediately anterior	2
isthmus separating	2
straight rather	2
southeastern wyoming	2
russell county	2
different stages	2
already developed	2
motley county	2
weber county	2
hemphillian mammalian	2
plate lacking	2
represent parts	2
see white	2
thomomys gidleyi	2
elevated plains	2
retained without	2
incisive foramina	2
lateral union	2
space truncate	2
forefoot small	2
yield measurements	2
bluff city	2
discussed elsewhere	2
history museum	2
skull valley	2
southeastern part	2
southcentral kansas	2
species occurs	2
subsequent evolution	2
niobrara county	2
creek formation	2
mastoid process	2
jugal suture	2
southeastern utah	2
morton county	2
la venta	2
form remarkably	2
ventura county	2
contractus differ	2
aftonian deposits	2
bulbivorum richardson	2
sides lighter	2
pappogeomys bensoni	2
convexus nelson	2
higher mountainous	2
type localities	2
rounded posterior	2
westcentral utah	2
crest lacking	2
see gazin	2
posteriorly truncate	2
consistently shorter	2
zygomata strongly	2
squamosal larger	2
matthewi wood	2
lower valleys	2
intermediate nature	2
six specimens	2
plates usually	2
molars bicolumnar	2
nearly every	2
personal communication	2
northwestern utah	2
zygomata slightly	2
greater relief	2
crest well	2
three distinct	2
slightly shorter	2
check list	2
subgenera orthogeomys	2
zygomata relatively	2
nesophilus durrant	2
ellsworth county	2
smallest subspecies	2
basin nat	2
separating lateral	2
named species	2
castanops angusticeps	2
without pronounced	2
stockton bar	2
geomys bulleri	2
southern jalisco	2
northwestern kansas	2
color varies	2
males average	2
specific assignment	2
de colima	2
concave medially	2
tertiary climax	2
bullae rounded	2
southeastern arizona	2
generally larger	2
low valleys	2
planirostris burt	2
undescribed species	2
near cinnamon	2
weakly defined	2
ridges bowed	2
labial inflection	2
rafinesque mus	2
illinoian glaciation	2
sextituberculate prototype	2
higher crowned	2
body medium	2
lake beds	2
later regarded	2
parts mummy	2
subspecies geomys	2
three extinct	2
roman type	2
favorable environment	2
abruptly narrow	2
utah mammalogy	2
short period	2
maxillae much	2
american recent	2
expanded anteriorly	2
iron counties	2
closely resembling	2
great variation	2
three grooves	2
internatus goldman	2
springs cave	2
glossy blackish	2
earliest record	2
molars persistently	2
national science	2
retained completely	2
last stages	2
interparietal triangular	2
width posteriorly	2
la gacha	2
towards platycephaly	2
illustrating enamel	2
foot sierra	2
aquarius plateau	2
fossa receives	2
westward certainly	2
row longer	2
fossil deposits	2
labial fissure	2
laguna de	2
incisors slightly	2
geomys arenarius	2
platelike expansion	2
pinal de	2
except zygomatic	2
dolichocephalic skulls	2
persistent throughout	2
excelsus differs	2
two names	2
breadths greater	2
meritus differs	2
lower levels	2
slight intergradation	2
either subtriangular	2
simon guggenheim	2
kansas ave	2
irroratus alleni	2
different kinds	2
convex transversally	2
bow mountains	2
cowley county	2
locality male	2
coconino county	2
broadly truncate	2
enamel lacking	2
river fossil	2
became extinct	2
labial fossette	2
first union	2
sheba canyon	2
one sex	2
mile flat	2
genus saccomys	2
outer margin	2
orthogeomys cavator	2
like contractus	2
underparts white	2
darker brown	2
dental formula	2
unnamed subspecies	2
niobrara river	2
deep masseter	2
park city	2
retaining primitive	2
estes park	2
skull wider	2
entrance zion	2
pine canyon	2
wet mountains	2
worn away	2
significant modification	2
ancestral dikkomyini	2
colorado museum	2
narrow across	2
western margin	2
close relationship	2
nw kelton	2
upper reaches	2
meatal tube	2
subsequent specialization	2
northeastern kansas	2
third white	2
convexus differs	2
two places	2
three species	2
highly differentiated	2
cenozoic vertebrate	2
la mira	2
denotes extinct	2
covering body	2
fulvus pervagus	2
many skulls	2
patterns occur	2
narrower posteriorly	2
south bridge	2
capa iii	2
duchesne county	2
two named	2
lutescens industrius	2
strongly mixed	2
unnamed species	2
sw slope	2
text enclosed	2
texas agric	2
bisulcate pattern	2
green rivers	2
suture long	2
arizona border	2
less inclined	2
planifrons nelson	2
la brea	2
specializations seen	2
underparts usually	2
see paulson	2
orientalis simpson	2
nerterogeomys cf	2
alveolar lips	2
name parageomys	2
el pino	2
subspecies known	2
sw toronto	2
wear produced	2
primitive structure	2
two lower	2
specialized assemblage	2
tooele counties	2
nearly perpendicular	2
retrorsus differs	2
markedly flared	2
arches longer	2
piute county	2
brownish instead	2
skull concave	2
pliosaccomys occurred	2
moderately mixed	2
pelage soft	2
lower incisor	2
tipped hairs	2
small geomys	2
typographical errors	2
interparietal small	2
dorsal outline	2
valley east	2
strongly developed	2
saunders species	2
entirely different	2
buff rather	2
screven county	2
planirostris differs	2
one hand	2
inner groove	2
parageomys tobinensis	2
thomomys microdon	2
sevieri differs	2
shallow vertically	2
individual variation	2
body averaging	2
convex rather	2
eventual loss	2
underparts light	2
less distinctly	2
arroyo san	2
slight attrition	2
primitive form	2
less frequently	2
remaining separated	2
halls peak	2
plates may	2
known specimens	2
distribution map	2
weaker skull	2
basic structural	2
ese browns	2
plate sometimes	2
bright cinnamon	2
systematic arrangement	2
last upper	2
pleisothomomys potomacensis	2
always rooted	2
group gymnoptychine	2
salt marsh	2
perpallidus centralis	2
great amount	2
although sometimes	2
species inhabit	2
thomomys potomacensis	2
inner fourth	2
side la	2
exactly intermediate	2
nowhere else	2
cascade creek	2
body large	2
de boquillas	2
unite across	2
dental characters	2
persistently bicolumnar	2
whitish instead	2
initial study	2
another specimen	2
extensive ranges	2
pappogeomys cratogeomys	2
excelsus nelson	2
toward either	2
much wider	2
resembles thomomys	2
castanops tamaulipensis	2
jugals vertical	2
patterns characteristic	2
relationships within	2
females total	2
thick coat	2
breadth rb	2
aspen grove	2
series short	2
premaxillae less	2
right angle	2
creek camp	2
whitish anteriorly	2
region narrower	2
mount ellen	2
parowan mountains	2
columns first	2
also shallow	2
marion county	2
sides cinnamon	2
cited allen	2
uinta mts	2
shallow depression	2
knox jones	2
routt co	2
forest service	2
earlier pleistocene	2
deep neutral	2
relatively greater	2
ramus mostly	2
less pointed	2
pocket mice	2
lines represent	2
names used	2
diffuse dorsal	2
clay color	2
durrant university	2
isolated range	2
male measured	2
nasals moderately	2
arrangement proposed	2
lateral angle	2
el tulillo	2
hart merriam	2
thinly overlaid	2
touching squamosal	2
province cartago	2
science foundation	2
anteroposterior occlusal	2
sulphur river	2
juan mountains	2
referred twelve	2
trichopus trichopus	2
palate longer	2
rubellus nelson	2
beaver creek	2
enamel restricted	2
phyletic relationships	2
lateral borders	2
well behind	2
se st	2
numerous records	2
fossa extending	2
early bilophodont	2
sierra mojada	2
irrigated fields	2
history university	2
shortest distance	2
fauna boreali	2
cheek pouches	2
following account	2
good creek	2
especially geomys	2
essex inst	2
geomys heterodus	2
squarely spreading	2
anterior extension	2
reddicks canyon	2
brown yr	2
enamel lophs	2
specialized entoptychid	2
ssw fort	2
species described	2
entrant inflection	2
pedro valley	2
ancestral assemblage	2
three lower	2
merriami thomas	2
american falls	2
indicate intergradation	2
anterior part	2
maxillofrontal suture	2
straight instead	2
many specimens	2
harvey county	2
generally smaller	2
intervening valley	2
near fort	2
delta valley	2
posterior prism	2
strongly constructed	2
farther posteriorly	2
pappogeomys fumosus	2
pattern appears	2
north slopes	2
skull dolichocephalic	2
skull shorter	2
diplostoma bulbivorum	2
three subspecies	2
pliosaccomys descended	2
relative abundance	2
labial end	2
pliocene faunas	2
talpoides bridgeri	2
median suture	2
occiput strongly	2
often hispid	2
perineal region	2
subspecific names	2
progressively higher	2
wide spreading	2
pygmaeus merriam	2
plates retained	2
scalops thomas	2
flaring distally	2
nebraska state	2
bottae rubidus	2
known material	2
panquitch lake	2
nebraskan glaciation	2
near inner	2
teeth high	2
inflection disappears	2
especially narrow	2
megascapheus elliot	2
perpallidus albicaudatus	2
extinct genus	2
geomyinae geomyinae	2
table headings	2
beaver basin	2
coahuila assigned	2
deciduous premolar	2
zygogeomys cf	2
brian head	2
sierra de	2
relatively abundant	2
colorado rivers	2
meagher county	2
prismatic character	2
elliptical columns	2
absonus goldman	2
progressively monocolumnar	2
pliocene fauna	2
primitive feature	2
ancestral species	2
incisors less	2
utah mammals	2
features characterizing	2
wnw gardner	2
uinta merriam	2
early stage	2
nova acta	2
states biological	2
national forest	2
premaxillae broad	2
high valley	2
goldmani merriam	2
generally longer	2
bullatus differs	2
color dark	2
orthogeomys heterogeomys	2
grateful acknowledgment	2
western parts	2
primitive lineage	2
considerable parallelism	2
rapid evolution	2
viewed laterally	2
unrecognized subspecies	2
shaped like	2
california museum	2
elbert county	2
arched rather	2
primitive groups	2
published august	2
premaxilla posterior	2
comparative material	2
talpoides ravus	2
four enamel	2
springs sites	2
flattened ventrally	2
genus nerterogeomys	2
effective barrier	2
widely open	2
specimens listed	2
irroratus acutus	2
especially shorter	2
tobinensis hibbard	2
evolved earlier	2
currently considered	2
incisors smooth	2
logan mountains	2
palate especially	2
see generic	2
southwestern parts	2
southwestern wyoming	2
gidleyi wilson	2
deep vertically	2
depressed distally	2
separate thomomys	2
tending towards	2
virgineus goldman	2
deep lateral	2
subspecifically distinct	2
always present	2
moderately ridged	2
kangaroo rat	2
named kinds	2
remarkably broad	2
patch cinnamon	2
nettle springs	2
map showing	2
goldmani differs	2
lateral border	2
papago springs	2
except pliogeomys	2
horizontally shallow	2
light colored	2
geomys merriami	2
surface usually	2
mandibular cheek	2
rostrum relative	2
garden counties	2
morulus differs	2
inner half	2
given age	2
hudspeth local	2
northern new	2
morgan county	2
pliosaccomys tribe	2
trend towards	2
clara creek	2
lateral folds	2
wayne county	2
morphological features	2
irvingtonian times	2
danish ranch	2
molariform series	2
cranial character	2
chaffee co	2
de amoles	2
beaver counties	2
denticulate distally	2
may extend	2
temporal lines	2
orthogeomys cuniculus	2
without marked	2
primitive subtriangular	2
pleistocene evolution	2
guggenheim memorial	2
highly variable	2
occiput less	2
stratigraphic levels	2
teeth always	2
close comparison	2
far posteriorly	2
available specimens	2
primitive members	2
eleven subspecies	2
adult specimen	2
line touching	2
moderately long	2
directly opposite	2
carnegie mus	2
heretofore unnamed	2
vestigial plate	2
alexandrae goldman	2
diego county	2
inhabit also	2
short distance	2
near jalapa	2
transverse range	2
brigham young	2
interparietal quadrangular	2
entoptychus entoptychus	2
terminal stages	2
remarkably stable	2
seven mile	2
proximal two	2
see schultz	2
especially true	2
john simon	2
modern genus	2
series long	2
castanops rubellus	2
pleistocene occurrence	2
zinseri morulus	2
arches much	2
subsimus nelson	2
sheridan county	2
boston soc	2
molars pear	2
large area	2
lancaster county	2
actually shorter	2
lingual border	2
two teeth	2
one column	2
probably also	2
columns become	2