期刊
JOURNAL OF HUMAN EVOLUTION
卷 63, 期 3, 页码 497-506出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jhevol.2012.05.012
关键词
Paranasal sinuses; Nasal cavity; Hominoids; Computed tomography; Neogene; Spain
资金
- Spanish Ministerio de Ciencia e Innovacion [CGL2008-00325/BTE, CGL2011-27343, CGL2011-28681, BES-2009-020612, RYC-2009-04533]
- Generalitat de Catalunya (Grup de Paleoprimatologia i Paleontologia Humana, GRC) [2009 SGR 754]
- Division Of Earth Sciences
- Directorate For Geosciences [0948842] Funding Source: National Science Foundation
- ICREA Funding Source: Custom
The internal (nasal and paranasal) cranial anatomy of the Middle Miocene (11.9 Ma [millions of years ago]) great ape Pierolapithecus catalaunicus (Hominidae: Dryopithecini) is described on the basis of computed-tomography scans of the holotype specimen (IPS21350), with particular emphasis on its phylogenetic implications. Pierolapithecus displays the following characters: an anteriorly-restricted maxillary sinus that posteriorly spreads towards the ethmoidal area (thus resembling the pongine condition), although being situated well above the molar roots (as in kenyapithecins, other dryopithecins and pongines); lack of frontal sinus (a synapomorphy of derived pongines, independently acquired by both cercopithecoids and hylobatids); posteriorly-situated turbinals (as in Pongo); anteriorly-projecting nasolacrimal canal (as in Pongo); and probably stepped nasal floor with non-overlapping premaxillary -maxillary contact (as in dryopithecines and stem hominoids, although it cannot be conclusively shown due to bone damage). Overall, Pierolapithecus displays a mosaic of primitive hominid and derived pongine features that are inconsistent with this taxon being a hominine (as previously suggested). Two alternative phylogenetic interpretations are possible: Pierolapithecus may be a stem member of the Hominidae as previously suggested in its original description, or alternatively this taxon may be a stem member of the Ponginae s.l. (with the European dryopithecines being the sister taxon to the Asian pongines). (C) 2012 Elsevier Ltd. All rights reserved.
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