- 著者
- FRANCK GUY RENAUD BOISTEL NICOLAS LENOIR LOUIS DE BONIS
- 出版者
- 日本人類学会
- 雑誌
- Anthropological Science (ISSN:09187960)
- 巻号頁・発行日
- pp.150624, (Released:2015-09-30)
- 被引用文献数
- 3
The HRD1 hominin maxilla was discovered during fieldwork carried out in the Republic of Djibouti, eastern Africa, in the 1980s. The HRD1 specimen is attributed to the genus Homo and has been dated from the Early to the Middle Pleistocene. This paper presents a detailed morphological and quantitative description of the HRD1 maxilla. The morphology of the dental roots, the enamel thickness, the morphological architecture of the premaxillary–maxillary complex, and the morphology of the maxillary sinus were all examined, yielding the data provided here. The Djiboutian specimen represents one of the late Early to Middle Pleistocene occurrences of Homo in an area where Pleistocene hominins are poorly documented despite a relative abundance of lithic artefacts. However, the precise identification of the specimen remains challenging and requires additional comparative analysis.
- 著者
- GEORGE D. KOUFOS LOUIS DE BONIS
- 出版者
- The Anthropological Society of Nippon
- 雑誌
- Anthropological Science (ISSN:09187960)
- 巻号頁・発行日
- vol.125, no.3, pp.141-151, 2017 (Released:2018-01-10)
- 参考文献数
- 36
- 被引用文献数
- 2
The upper incisor lingual morphology of the late Miocene Greek hominoid Ouranopithecus macedoniensis was almost unknown, as the described earlier maxillary remains preserve only worn incisors. During the most recent excavations in the type locality of Ouranopithecus, Ravin de la Pluie (RPl) of Axios Valley (Macedonia, Greece), four little-worn upper central incisors were recovered. This material and a few additional worn upper incisors, discovered recently, are described and compared in this article. Even though a morphological comparison with the old RPl material, lacking unworn or little worn incisors, is impossible, the metrical comparison and the monospecific character of the RPl hominoid sample suggest that the described incisors can be assigned to Ouranopithecus macedoniensis. The described upper central incisors are separated in two size-groups which in general have similar morphology except for some minor differences such as the presence of a pronounced mesial lingual pillar in the small-sized specimens. The observed significant size difference among the studied incisors is attributed to the strong sexual dimorphism of Ouranopithecus, which is also well expressed in the other teeth. The lingual morphology of the upper incisors of Ouranopithecus are not identical to those of extant great apes, though they have some similarities with those of the African great apes (Gorilla and Pan), while they are clearly different from those of the Asian great ape (Pongo). Even though they have some morphological similarities, the O. macedoniensis central incisors are probably not identical to those of the Eurasian Miocene hominoids; the most similar central incisor is that of Ouranopithecus turkae. Among the known African Miocene hominoids, Nakalipithecus upper central incisor is quite similar in morphology and size to that of Ouranopithecus.