unigram

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

unigram frequency
ii5685
one5054
species4245
may3408
regions3295
two3146
sub3028
genera2968
found2891
sp2823
great2787
region2592
south2531
new2362
first2149
many2083
america2081
also2069
water2008
long1988
animals1964
now1905
like1864
feet1856
time1842
north1805
forms1792
birds1760
will1753
part1685
genus1676
three1664
period1645
family1624
must1616
made1577
land1571
much1530
africa1491
sea1487
islands1478
oriental1457
large1455
lower1407
australia1400
remains1400
peculiar1398
fig1392
life1391
well1339
distribution1333
europe1315
silver1314
small1310
known1299
us1298
rocks1291
even1274
upper1262
whole1258
australian1219
form1218
see1217
however1214
little1206
less1194
miocene1193
earth1192
present1184
copper1165
group1156
american1155
illustration1130
lead1128
iron1119
another1114
far1113
general1104
man1100
order1077
find1076
ethiopian1054
old1032
number1026
almost1005
animal1003
beds986
still985
pliocene978
series954
extinct950
age937
living935
gold930
west923
place912
world906
neotropical903
silurian896
probably891
deposits890
yet889
tertiary885
tropical876
fossil864
among854
four852
half852
others846
way837
fishes821
size815
wide813
day801
nearctic801
european798
fact791
teeth788
modern787
often778
certain775
bones772
plants770
fossils765
therefore754
eocene752
back751
india745
reptiles741
though740
called740
case736
ore733
groups730
families724
second721
range717
shells716
work716
nature713
mr710
end710
furnace708
parts707
strata705
history704
side695
perhaps689
since683
different678
latter676
allied674
surface665
zealand664
several664
characteristic664
victoria661
length661
together660
represented660
de657
head655
last651
seen649
either648
east645
rock641
times638
years637
sometimes637
ancient636
cretaceous636
near625
numerous624
evidence624
placed617
types617
mexico617
various614
confined611
might609
every608
common606
carboniferous605
important605
geological603
natural600
nearly600
professor591
remarkable585
post584
similar584
high583
fauna579
central577
river576
point574
northern571
five569
third569
true563
without562
seems561
fire557
stone554
body552
given552
vol552
away551
foot544
kind542
just541
make539
bird539
temperate539
later535
limestone535
higher535
good533
generally530
formed530
origin528
men528
insects526
wales526
devonian525
abundant524
middle522
occur522
early518
taken517
ground516
name509
states508
brazil508
means506
use506
existing505
mammalia504
mammals501
marine500
recent497
hand496
fish496
larger494
island491
structure491
although488
following487
former487
mountains485
described485
thick484
china484
matter483
coal481
quite480
whether480
conditions479
along477
say474
southern474
country472
six471
especially471
indian469
chapter466
used465
type465
climate463
left462
madagascar462
fresh462
distinct462
red460
formation454
belong454
show450
evolution449
view449
seem448
greater447
shell445
pp444
become443
existence443
next443
bottom443
shall442
whose440
plains439
changes438
know436
take435
covered433
sand432
cases432
portion431
cakes431
material430
white430
science428
development423
appear422
already419
air418
come418
miles417
seas417
doubt413
developed411
chalk410
cainozoic408
th408
least408
interesting407
eastern407
discovered404
things403
agricola403
dr401
give400
mines400
account399
deep397
waters395
salt395
state393
jurassic392
united389
except388
western385
wood384
vast383
right382
extent381
character379
clay379
ocean379
manner379
skeleton378
trees378
reason378
wall377
continent377
short373
digits372
set371
single370
celebes368
somewhat368
knowledge365
appears363
etc363
within363
twenty362
usually360
plate358
hundred358
tail356
bone356
considerable356
round354
metal353
tin353
facts353
book353
cambrian349
close348
subject348
course348
contains347
palms347
globe347
always347
gr345
method345
appearance343
best343
horse343
stones342
asia342
line340
ages339
belonging339
question338
area337
cold336
himalayas335
permian335
mesozoic334
rich333
metals333
light333
past332
valley332
theory331
arctic330
cosmopolite330
mentioned330
smaller328
rivers327
put326
closely325
note325
came324
mining324
primitive324
nothing324
melted323
plates323
front322
java320
veins319
level319
japan318
extensive317
class315
ever313
physical312
beyond312
works311
necessary311
open311
according310
spread310
fine309
making309
vein309
human308
rather307
contain305
full304
mouth304
supposed303
features303
wholly302
older301
shown300
england300
corals298
never297
story295
position294
curious293
change293
sides292
process291
possible291
composed290
glacial290
ice290
places289
hard289
says289
considered288
geology288
black287
cut286
specimens285
mammoth285
preserved285
interest284
creatures284
queensland284
mountain284
bed284
st284
warm283
shaft283
limestones283
crucible283
skull281
guinea280
coast280
follows279
characters279
bodies279
tasmania278
broken277
obtained277
easily276
museum275
mixed272
periods271
probable271
clear270
referred270
study270
sandstone270
mud269
carried269
complete268
containing267
african267
mass267
century266
vegetation266
re265
separated265
enough265
equally264
forests264
fixed264
special263
brought263
page262
equal262
record261
proportion261
caves261
earlier260
better260
heat260
zoological260
let259
consists258
marked258
mine258
rest256
borneo256
comparatively256
tunnel254
thickness254
space253
amount253
able253
term252
people252
condition252
divided252
sun251
believe251
power251
distance250
numbers250
ten250
apparently249
ceylon249
axle249
limbs248
occurs248
organic248
inches248
race247
example246
discovery246
shows246
idea246
dry245
specimen245
british245
original245
due243
alone242
soon242
forest242
classification242
go241
laid241
gives241
britain241
food241
tooth241
entirely241
lived240
scientific239
fourth239
miners239
connection239
pleistocene238
bellows237
seven237
became236
really236
malaya236
weight236
separate236
succession235
turn235
palm235
gigantic235
eight234
thought234
geographical233
la233
epoch233
fragments232
top232
indeed232
table231
think231
malay230
young230
toward230
call229
leaves229
formations229
malayan229
partly228
lizards227
days227
widely226
fall226
pacific226
liquation226
buffalo225
produced225
consider225
varied225
drawn225
geol224
afterward223
law223
remain223
low223
footnote222
tree221
regard220
entire220
around220
showing220
chili219
height219
hemisphere219
words218
system218
furnaces217
hardly217
smelting217
indicate217
sulphur217
certainly217
broad217
continents217
antilles216
changed216
colour216
amongst215
canada215
description214
kinds214
california214
existed214
whilst214
lines213
largest213
huge213
france212
iii212
direction211
moluccas211
becomes210
methods210
ores209
thrown209
highly209
division209
main209
shape208
variety208
pass208
triassic208
shaped208
beginning207
owen207
depth207
shore207
year206
strange206
district206
forming206
hole206
absence205
washed205
across205
habits205
difficult205
none204
lat204
charcoal204
mind204
impressions203
ordinary203
calcareous203
wooden203
amphibia203
result203
relations202
terrestrial202
possess201
cause200
rise200
actual199
merely199
recently199
jaw199
pieces199
areas198
live198
took198
points198
author198
instead197
done197
greek197
wild196
creature196
enormous196
indo195
lake195
greatly195
largely195
added195
sir194
smelted194
remarks194
filled194
believed194
atlantic194
chief193
kansas193
cave193
value192
related192
reach192
continued192
powerful191
held191
occurrence191
portions191
names191
bearing190
jaws190
exclusively190
cross190
substance189
eyes189
walls189
thousand189
turned189
rhinoceros189
mineral189
hills189
ago188
limited188
strong188
soft188
run188
causes187
particular187
action187
english187
german187
deposited186
regarded186
libra186
simple186
consist185
occurred185
skin185
beautiful185
stage185
mostly185
reached185
abundance184
gradually184
saw184
exist184
snakes183
base183
extending183
absent182
finally182
particles182
horses182
information182
elephant181
clearly181
poured180
neither179
importance179
figure179
distributed179
derived179
principal179
soc179
likewise178
minute178
masses178
scales177
possesses177
force177
pyrites177
conclusion177
toes177
elevation177
altogether177
brazilian176
sufficient176
extend176
god176
lime176
ends175
andes175
london175
lost175
ones175
reptile175
purpose175
flora175
highest175
section175
examples174
per174
guatemala174
sumatra174
marsh174
wonderful173
death173
columbia172
unknown172
makes172
carbopermian172
bolivia171
affinities171
face171
isolated171
countries170
measures170
crust170
remote170
difference170
distant169
thirty169
trilobites169
winter169
meet169
deposit168
scattered168
statement168
bear168
difficulty167
minerals167
fully167
ranges167
et167
vitriol166
besides166
creation166
chiefly166
heated166
geologists166
temperature166
deer165
trias165
hearth164
frequently164
look164
vegetable164
era164
dead164
need164
glass164
passed164
box164
hence163
connected163
divisions162
greece162
thin162
throughout162
something162
date162
total161
pure161
king161
laurentian160
rocky160
inhabit160
alum160
population159
bay159
wheel159
free159
word159
twelve159
thing159
perfect158
familiar158
iv158
flows158
solid158
pointed158
coral158
truth157
applied157
lakes157
suppose157
skeletons157
impossible157
society157
adapted157
mollusca157
fathoms157
longer157
tracks157
published157
streams156
instance156
sense156
slowly155
raised155
distinguished155
opinion155
pliny155
arms155
holes155
thousands154
chain154
powder154
foraminifera154
rod154
philippines154
comprising154
bar154
ashes154
hypothesis153
till153
lowest153
straight153
progress153
plant153
transverse153
passing153
peru152
digit152
inhabiting152
mediterranean152
get152
driven151
proper151
sort151
beneath151
creek151
orders151
prove151
historical151
green151
greatest151
cloth150
roman150
compared150
beams150
materials150
thibet150
heavy150
bony150
reader150
collected149
hot149
coloured149
comes149
lastly149
sufficiently149
branches149
washing149
ordovician149
mastodon149
plata149
indicated148
shallow148
native148
mere148
occasionally148
aquatic148
dried147
named147
taking147
immense147
explain147
differences147
tell147
degree147
shores146
appeared146
antiquity146
striking146
lies146
list146
dinosaurs146
else146
lizard146
proved146
effect146
semi145
identical145
soil145
presence145
ecuador145
cape145
support145
continental144
removed144
singular144
terms144
interior144
wings144
organisms144
hands143
lay143
elephants143
extends143
edition143
diameter143
ranging143
preceding142
whatever142
poor142
limits142
stream142
arrangement142
dust142
possessed141
fifty141
lands141
localities141
party141
explained141
shafts141
evidently141
flying140
mention140
quicksilver140
peculiarities139
fairly139
sandstones139
buried139
possibly139
earliest139
resemblance139
nine138
hind138
restricted138
trace138
follow138
hold137
books137
melt137
explanation137
quantity137
neck137
understand136
immediately136
details136
double136
moreover136
pots136
wind136
add136
pipe135
alloy135
observed135
oldest135
lie135
text135
consisting135
intermediate135
notice135
gave135
extreme134
shales134
including134
forty134
late134
reduced134
behind134
austro134
slags133
sheep133
opening133
pt133
enter133
legs133
sands133
literature133
cupellation133
speak132
contained132
papuan132
reference132
completely132
width132
unless132
typical132
insect131
fore131
locality131
prepared131
spring131
forward131
hill131
vii131
views131
introduced130
prior130
conclusions130
stated130
rain130
yellow130
clays130
led129
represent129
simply129
yielded129
guiana129
vi129
solution129
timor129
latin129
attached129
blood129
required129
presented128
uncia128
building128
representatives128
running128
mainly128
litharge128
differ128
attention128
elsewhere128
discussion128
nat128
collection127
eth127
plain127
flat127
went127
drum127
fil127
adopted126
narrow126
formerly126
relation126
centumpondium126
brachiopods126
stars126
traces126
zone125
furnished125
leave125
brain125
square125
lateral125
seemed125
piece124
anything124
advance124
established124
associated124
supply124
carnivorous124
influence124
centre124
acid123
dark123
centuries123
addition123
pre123
flint123
built123
internal123
previous123
successive123
valleys123
met123
toothed123
scale123
cuba122
vict122
noticed122
began122
exposed122
eye122
wing122
minor122
night121
flow121
zoology121
belief121
defined121
sponges121
cord121
edge120
indications120
crushed120
mark120
read120
opposite120
remaining120
wealden120
chapm119
classes119
proof119
suddenly119
direct119
followed119
recorded119
blue119
coming119
board119
cadmia119
field118
slow118
monkeys118
majority118
antimony118
authority118
art118
arranged118
mccoy118
passage118
written117
germany117
contrary117
rare117
mode117
absolutely117
secondary117
results116
chamber116
inhabits116
valuable116
return116
suggested116
extraordinary116
takes116
fifth116
hope116
tusks116
concentrates116
resembling116
going116
nearest115
useful115
owing115
bring115
desert115
carefully115
cover114
lute114
layers114
metallic114
vertical114
carry114
saltpetre114
rapidly114
carnivora114
inhabitants114
spines114
extremely114
districts114
extended114
allies113
approach113
philippine113
commonly113
deal113
covering113
modified113
anterior113
corresponding113
introduction113
pot113
marks113
heads113
towards113
metallica113
blast112
stand112
summary112
rounded112
constitute112
feature112
star112
capable112
crustaceans112
gravel112
ferns112
master111
exactly111
writers111
exception111
posts111
occurring111
phenomena110
consideration110
janjukian110
patagonia110
paraguay110
title110
kept110
vo110
giving110
dog110
discoveries109
apart109
millions109
genesis109
slender109
costa109
require109
quadrupeds109
grass109
branch109
joined109
centumpondia109
indians108
sunk108
writer108
outer108
cliff108
resemble107
parting107
experience107
horn107
members107
primary107
rica107
remained107
reasons107
forehearth107
leaving107
properly107
depths107
beam107
fastened107
ways107
quarters106
scarcely106
summer106
siberia106
doubtful106
actually106
external105
undoubtedly105
marsupials105
big105
australis105
rarely105
greensand105
growth105
slightly104
determined104
ibid104
greenland104
handle104
rule104
giant104
hair104
surrounding104
juices104
gravels104
powers104
advanced104
sight104
refining104
cuvier103
cast103
band103
argument103
rate103
beetles103
provided103
begin103
guide103
weights103
blow102
faunas102
hall102
melting102
scene102
miner102
local102
amazon102
affinity102
dug102
dispersal102
necessarily102
inclined102
based102
forth102
imagine101
volcanic101
bars101
matters101
doctrine101
geologist101
spot101
crocodiles101
worms101
runs101
looking101
roasted101
future101
lias101
authorities101
appendix101
naturalists101
occupied101
eggs100
upright100
increased100
hollow100
included100
atmosphere100
vena100
comparison100
pair100
molten100
inhabited100
posterior100
unlike100
succeeding100
migration99
otherwise99
downs99
produce99
brown99
cosmopolitan99
horns99
dimensions99
huxley99
flowers99
test99
ring98
footprints98
regards98
zones98
drift98
vertebrates98
stood98
bears98
butterflies98
coleoptera98
object98
substances98
machine98
obtain98
crinoids98
lying98
sharks98
prey97
respect97
careful97
break97
respects97
ancestors97
feathers97
remainder97
sieve97
workmen97
isle97
swimming97
city97
oceans97
colours97
real97
formosa97
cope97
races97
librae96
volume96
abound96
enable96
aqua96
received96
liquid96
notes96
originally96
timber96
dorsal96
plan96
bivalves96
paper96
conspicuous95
tropics95
definite95
destruction95
floor95
beings95
worked95
owners95
circle95
ancestor95
supported95
egypt95
texas95
outside95
authors95
sixth95
mean94
noted94
obscure94
similarly94
regular94
flourished94
namely94
speaking94
exhibit94
hours94
mm94
aspect94
belongs94
molluscs94
exists94
truly94
preservation94
darwin94
bands94
attained93
settled93
draw93
extinction93
readily93
bats93
house93
mammal93
labour93
characterised93
apes93
palaeozoic93
sent93
throws93
attempt93
roof93
stock92
pages92
strake92
camp92
directly92
flight92
viii92
implements92
refer92
hunting92
belonged92
imperfect92
fly91
hippopotamus91
previously91
uncertain91
rapid91
pit91
essentially91
whales91
assaying91
examination91
hundreds91
created91
exact91
sharp91
home91
inside91
ix91
arm90
curved90
million90
problem90
charge90
exhausted90
ireland90
worn90
extension90
meer90
classed90
mixture90
advantage90
surfaces89
average89
zinc89
falls89
turns89
bronze89
assay89
objects89
snow89
kingdom89
processes89
instances89
individual89
tub89
colorado89
alps89
illustrations89
pretty88
afford88
alluvial88
sudden88
edges88
throw88
coasts88
products88
stratified88
whereas88
escape88
picture88
elements88
operation88
continuous88
ammonites88
uses88
jamaica88
trough88
chambers88
spirit88
rising87
peninsula87
generic87
strength87
understood87
complex87
measure87
civilisation87
translation87
sal87
vessel87
conclude87
circumstances87
struggle87
prevent87
perfectly87
trunk87
laws87
oligocene87
cliffs86
goes86
slag86
etheridge86
indicates86
gradual86
nautilus86
detail86
reaches86
graptolites86
subsequent86
possession86
machines86
malacca86
standing86
represents86
wolf86
mammalian85
evident85
carbonate85
savage85
ft85
likely85
principle85
opened85
survey85
nevertheless85
movement85
closed85
geography85
considerably85
practically84
tribe84
parallel84
bison84
naturally84
tate84
situated84
determine84
equatorial84
banks84
indication84
got84
obvious84
solomon84
sachem84
purely84
chinese84
natura84
differs84
universal84
lest83
flesh83
vessels83
caused83
paris83
slight83
representative83
selection83
town83
fort83
begins83
told83
leading83
describes83
latitude83
frame83
stands83
territory83
died83
cattle82
tunnels82
spain82
increase82
venezuela82
triangle82
roots82
surv82
essential82
wanting82
keep82
primordial82
charles82
easy82
strictly82
layer82
york82
beasts82
fin82
fossiliferous81
coals81
usual81
cephalopods81
converted81
compound81
happened81
principally81
marls81
source81
continue81
sediments81
iguanodon81
cycads81
john81
bergmeister81
sandwich81
excellent81
drawing81
toed81
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