High occurrence of a basicranial feature inHomo erectus: Anatomical description of the preglenoid tubercle

Autor: Valery Zeitoun
Přispěvatelé: Centre de Recherche en Paléontologie - Paris (CR2P), Muséum national d'Histoire naturelle (MNHN)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2003
Předmět:
Zdroj: Anatomical Record
Anatomical Record, Wiley, 2003, 274B (1), pp.148-156. ⟨10.1002/ar.b.10028⟩
ISSN: 0003-276X
1097-0185
DOI: 10.1002/ar.b.10028⟩
Popis: International audience; The degree of differentiation between Westernand Eastern Early Middle Pleistocene hominids (Homo erectus) is still under debate. On the one hand, the two populations are believed by some to belong to two separate taxonomic categories possessing their own exclusive features. On the other hand, they are considered by others to belong to a single but ubiquitous global population with regional specificities that are mainly due to variations in the frequency of certain features. In this context, an additional trait, the preglenoid tubercle (tuberculum anterius fossae mandibularis), may well shed light on the matter. The tubercle is often present on the anterior part of the fossa mandibularis at the anterior extent of the joint capsule and articular tubercle (tuber articulare) of fossils usually assigned toHomo erectus. This study describes the anatomy of the preglenoid tubercle, to indicate its occurrence and to try to improve its use in taxonomy and phylogeny, although its origin and functional significance have not yet been clarified.
Databáze: OpenAIRE