Stem members of Platyrrhini are distinct from catarrhines in at least one derived cranial feature.

dc.contributor.author

Fulwood, Ethan L

dc.contributor.author

Boyer, Doug M

dc.contributor.author

Kay, Richard F

dc.date.accessioned

2018-11-12T13:52:59Z

dc.date.available

2018-11-12T13:52:59Z

dc.date.issued

2016-11

dc.date.updated

2018-11-12T13:52:57Z

dc.description.abstract

The pterion, on the lateral aspect of the cranium, is where the zygomatic, frontal, sphenoid, squamosal, and parietal bones approach and contact. The configuration of these bones distinguishes New and Old World anthropoids: most extant platyrrhines exhibit contact between the parietal and zygomatic bones, while all known catarrhines exhibit frontal-alisphenoid contact. However, it is thought that early stem-platyrrhines retained the apparently primitive catarrhine condition. Here we re-evaluate the condition of key fossil taxa using μCT (micro-computed tomography) imaging. The single known specimen of Tremacebus and an adult cranium of Antillothrix exhibit the typical platyrrhine condition of parietal-zygomatic contact. The same is true of one specimen of Homunculus, while a second specimen has the 'catarrhine' condition. When these new data are incorporated into an ancestral state reconstruction, they support the conclusion that pterion frontal-alisphenoid contact characterized the last common ancestor of crown anthropoids and that contact between the parietal and zygomatic is a synapomorphy of Platyrrhini.

dc.identifier

S0047-2484(16)30089-6

dc.identifier.issn

0047-2484

dc.identifier.issn

1095-8606

dc.identifier.uri

https://hdl.handle.net/10161/17651

dc.language

eng

dc.publisher

Elsevier BV

dc.relation.ispartof

Journal of human evolution

dc.relation.isversionof

10.1016/j.jhevol.2016.08.001

dc.subject

Skull

dc.subject

Animals

dc.subject

Phylogeny

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Species Specificity

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Fossils

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Platyrrhini

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Catarrhini

dc.title

Stem members of Platyrrhini are distinct from catarrhines in at least one derived cranial feature.

dc.type

Journal article

duke.contributor.orcid

Kay, Richard F|0000-0002-4219-7580

pubs.begin-page

16

pubs.end-page

24

pubs.organisational-group

Trinity College of Arts & Sciences

pubs.organisational-group

Duke

pubs.organisational-group

Evolutionary Anthropology

pubs.organisational-group

Earth and Ocean Sciences

pubs.organisational-group

Nicholas School of the Environment

pubs.organisational-group

Student

pubs.publication-status

Published

pubs.volume

100

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