pnas11016correction 6607..6608


Corrections

EVOLUTION
Correction for “The ABO blood group is a trans-species poly-
morphism in primates,” by Laure Ségurel, Emma E. Thompson,
Timothée Flutre, Jessica Lovstad, Aarti Venkat, Susan W.
Margulis, Jill Moyse, Steve Ross, Kathryn Gamble, Guy Sella,
Carole Ober, and Molly Przeworski, which appeared in issue 45,

November 6, 2012, of Proc Natl Acad Sci USA (109:18493–18498;
first published October 22, 2012; 10.1073/pnas.1210603109).
The authors note that Fig. 1 appeared incorrectly. Some ABO

polymorphism statuses have been corrected. The corrected fig-
ure and its legend appear below.

www.pnas.org/cgi/doi/10.1073/pnas.1304029110

Fig. 1. The phylogenetic distribution of ABO phenotypes and genotypes. Shown is a phylogenetic tree of primate species, with a summary of phenotypic/
genotypic information given in the first column, and the genetic basis for the A versus B phenotype provided in the second column (functionally important
codons at positions 266 and 268 are in uppercase letters). See Dataset S1 for the source of information about phenotypes/genotypes. Only species with
available divergence times are represented here (34 of 40). The phylogenetic tree is drawn to scale, with divergence times (on the x axis) in millions of years
taken from ref. 29. OWM, Old World monkeys; NWM, New World monkeys. Under a model of convergent evolution, these data suggest that A is the ancestral
allele, and a turnover (e.g., a neutral substitution) occurred on the branch leading to Old World monkeys. If instead, B were ancestral, all Old World monkeys
would have had to serendipitously converge from ATG to TTG to encode a leucine, whereas all New World monkeys and hominoids would have had to
converge to the CTG codon.

www.pnas.org PNAS | April 16, 2013 | vol. 110 | no. 16 | 6607–6608

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www.pnas.org/cgi/doi/10.1073/pnas.1304029110


EVOLUTION; EARTH, ATMOSPHERIC, AND PLANETARY SCIENCES
Correction for “Mass extinction of lizards and snakes at the
Cretaceous–Paleogene boundary,” by Nicholas R. Longrich,
Bhart-Anjan S. Bhullar, and Jacques A. Gauthier, which appeared
in issue 52, December 26, 2012, of Proc Natl Acad Sci USA
(109:21396–21401; first published December 10, 2012; 10.1073/
pnas.1211526110).
The authors note the following: “The genus name Lamiasaurus,

which we proposed for a new lizard from the Late Cretaceous of
Wyoming, is preoccupied by Lamiasaurus Watson 1914 (1), a
tapinocephalid therapsid from the Permian of Africa. We therefore
propose the name Lamiasaura for the Wyoming lizard; its type
species is Lamiasaura ferox, also proposed in our paper. Fur-
thermore, holotypes were figured for this and other newly pro-
posed species but not explicitly identified in the text. We designate
types and provide diagnoses as follows. Cemeterius monstrosus,
holotype: United States National Museum 25870. Diagnosis:
large stem varanoid characterized by a deep, massive jaw, teeth
short, unserrated, robust, and labiolingually expanded. Cerberophis
robustus, holotype: University of California Museum of Paleon-
tology 130696. Diagnosis: medium-sized (∼2 m) alethinophidian,
trunk vertebrae with broad, flat ventral surface, hypertrophied
synapophyses, large, massive prezygapophyses with rudimentary
prezygapophyseal processes and anterior ridges; neural arch with
dorsolateral ridges, moderately tall neural spine. Lamiasaura ferox,
holotype: University of Wyoming 25116A, left dentary with four
teeth. Diagnosis: dentary straight, tapered in lateral view; teeth
widely spaced, crowns weakly recurved, crowns with bottleneck
constriction between the base and apex, low mesial and distal cusps,
and ridged lingual surface. Lonchisaurus trichurus, holotype:
American Museum of Natural History 15446. Diagnosis: dentary
long, low, and weakly bowed in lateral view; tooth crowns robust,
weakly recurved, with weakly pointed crowns; tooth bases wider la-
bially than lingually, tooth replacement reduced, coronoid overlaps
dentary laterally. Obamadon gracilis, holotype: University of Cal-
ifornia Museum of Paleontology 128873. Diagnosis: small poly-
glyphanodontian characterized by the following combination of
characters: dentary slender, symphysis weakly developed, tooth im-
plantation subpleurodont, teeth lack basal expansion, tooth crowns
with a tall central cusp separated from accessory cusps by deep lin-
gual grooves. Pariguana lancensis, holotype: American Museum of
Natural History 22208. Diagnosis: small iguanid; teeth tall, slender,
with tapering crowns and weak accessory cusps; coronoid extended
onto lateral surface of jaw below last tooth, Meckelian groove con-
stricted suddenly ahead of anterior inferior alveolar foramen. So-
cognathus brachyodon, holotype: Yale Peabody Museum (Princeton
University Collection) 16724. Diagnosis: Socognathus with posterior
teeth having strongly swollen, weakly tricuspid crowns.”
“This correction formally validates the taxa proposed in our

2012 paper; thus, those taxa should be attributed to this note and
accordingly dated as March 19, 2013.”
“We thank Christian Kammerer and Christopher Taylor for

bringing these two issues to our attention.”

1. Watson DMS (1914) The Deinocephalia, an order of mammal-like reptiles. Proceedings
of the Zoological Society of London 749–786.

www.pnas.org/cgi/doi/10.1073/pnas.1303907110

NEUROSCIENCE, PSYCHOLOGICAL AND COGNITIVE SCIENCES
Correction for “Sensory adaptation as optimal resource allocation,”
by Sergei Gepshtein, Luis A. Lesmes, and Thomas D. Albright,
which appeared in issue 11, March 12, 2013, of Proc Natl Acad
Sci USA (110:4368–4373; first published February 21, 2013; 10.
1073/pnas.1204109110).
The authors note that, due to a printer’s error, some text ap-

peared incorrectly.
On page 4368, right column, third full paragraph, line 6 “in

Fig. 2A” should instead appear as “in Fig. 2B”.
On page 4369, right column, second full paragraph, line 7 “in

Fig. 2A” should instead appear as “in Fig. 3A”.
On page 4370, left column, fourth full paragraph, lines 1–3 “In

Fig. 4A, sensitivity changes are plotted for two speeds (Fig. 4A,
Upper) and for the entire domain of the sensitivity function (Fig.
4A, Lower)” should instead appear as “In Fig. 4B, sensitivity
changes are plotted for two speeds (Fig. 4B, Upper) and for the
entire domain of the sensitivity function (Fig. 4B, Lower)”.
On page 4372, left column, first full paragraph, line 3 “cortical

visual area middle temporal (MT)” should instead appear as
“middle temporal (MT) cortical visual area”.
On page 4372, right column, second full paragraph, lines 2–3

“as illustrated in Fig. 2A for experiment 1 and Fig. 3A for ex-
periment 2” should instead appear as “as illustrated in Fig. 3A
for experiment 1 and Fig. 2A for experiment 2”.

www.pnas.org/cgi/doi/10.1073/pnas.1304728110

CHEMISTRY
Correction for “Enhanced surface hydrophobicity by coupling of
surface polarity and topography,” by Nicolas Giovambattista,
Pablo G. Debenedetti and Peter J. Rossky, which appeared in
issue 36, September 8, 2009, of Proc Natl Acad Sci USA
(106:15181–15185; first published August 14, 2009; 10.1073/
pnas.0905468106).
The authors note the following: “Recalculations confirm some

of the conclusions reported in our paper but do not confirm
others. Specifically, we confirm that (i) polar surfaces can be
hydrophobic, (ii) capillary evaporation can occur when water is
confined between “polar hydrophobic” nanoscale surfaces, and
(iii) inversion of surface polarity can alter the surface hydro-
phobicity (i.e., water contact angle). However, because of the
sensitivity of the results to the value of the Ewald wave vector
cutoff parameter mmax for the model surface studied, the re-
ported observation that adding polarity to an apolar silica-based
surface can enhance hydrophobicity beyond that of the original
apolar surface is not confirmed.
“We thank Zhonghan Hu for bringing to our attention dis-

crepancies between his computer simulation results and some
of our calculations reported in the above-cited PNAS paper;
Richard C. Remsing and John D. Weeks for generously sharing
their results with us; and Sapna Sarupria, Amish Patel, and Sumit
Sharma for useful discussions. Additional details regarding the
recalculations are available from the authors upon request.”

www.pnas.org/cgi/doi/10.1073/pnas.1304562110

6608 | www.pnas.org

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www.pnas.org/cgi/doi/10.1073/pnas.1303907110
www.pnas.org/cgi/doi/10.1073/pnas.1304728110
www.pnas.org/cgi/doi/10.1073/pnas.1304562110