{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T13:04:36Z","timestamp":1790255076142,"version":"4.1.0"},"reference-count":47,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2009,8,28]],"date-time":"2009-08-28T00:00:00Z","timestamp":1251417600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["The Anatomical Record"],"published-print":{"date-parts":[[2009,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Amphipithecids assume a key position in early primate evolution in Asia. Here we report on new maxillofacial and associated mandibular remains of <jats:italic>Siamopithecus eocaenus<\/jats:italic>, an amphipithecid primate from the Late Eocene of Krabi (Thailand) that currently represents the most complete specimen belonging to this group. We used synchrotron microtomography and techniques of virtual reconstruction to recover the three\u2010dimensional morphology of the specimen. Geometric\u2010morphometric analysis of the reconstructed specimen within a comparative sample of recent and fossil primates clearly associates <jats:italic>Siamopithecus<\/jats:italic> with the anthropoids. Like modern anthropoids, <jats:italic>Siamopithecus<\/jats:italic> displays a relatively short face and highly convergent and frontated orbits, the lower rim of which lies well above the alveolar plane. The cooccurrence of spatially correlated anthropoid features and classical anthropoid dental characters in one individual represents a strong argument to support the anthropoid status of <jats:italic>Siamopithecus<\/jats:italic>. It is, thus, highly unlikely that amphipithecids are specialized adapiforms exhibiting complete convergence with anthropoids. Anat Rec, 2009. \u00a9 2009 Wiley\u2010Liss, Inc.<\/jats:p>","DOI":"10.1002\/ar.20998","type":"journal-article","created":{"date-parts":[[2009,8,28]],"date-time":"2009-08-28T09:06:25Z","timestamp":1251450385000},"page":"1734-1744","source":"Crossref","is-referenced-by-count":17,"title":["The Face of <i>Siamopithecus<\/i>: New Geometric\u2010Morphometric Evidence for Its Anthropoid Status"],"prefix":"10.1002","volume":"292","author":[{"given":"Christoph P.E.","family":"Zollikofer","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marcia S. 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