2022年3月15日 · The morphology of the individual teeth is where we see the most change. Among primates, large incisors are associated with food procurement or preparation (such as biting small fruits), while small incisors indicate a diet which may contain small seeds or leaves (where the preparation is primarily in the back of the mouth).

2010年10月25日 · Human populations often make use of the teeth as a "third hand" to hold materials being worked on with both hands. Some peoples also use the teeth to soften skins or plant fibers used to make clothing or other materials. Such uses over time produce distinctive, sometimes severe, wear on the teeth.

2015年9月1日 · As the canines and honing premolar form a functional complex in extant anthropoids, a hypothesis of morphological integration predicts that the size and shape of these teeth should covary as a result of genetic and/or developmental factors and that they should have evolved in a coordinated manner (e.g., Wagner et al., 2007, Klingenberg, 2008).

2004年3月5日 · Late Miocene fossil hominid teeth recovered from Ethiopia's Middle Awash are assigned to Ardipithecus kadabba. Their primitive morphology and wear pattern demonstrate that A. kadabba is distinct from Ardipithecus ramidus. These fossils suggest that the last common ancestor of apes and humans had a functionally honing canine–third premolar ...

The gap between the canine tooth and the third premolar on the chimpanzee mandible is part of what is called the CP3 honing complex. As can be seen on the A. afarensis mandible the canine tooth is significantly smaller and there is no functioning honing complex.

Through all studies, a general consensus has developed between primate tooth shape and diet: primates that require a high chewing efficiency tend to have sharper, more complex, higher‐crowned, and morphologically wear‐resistant molars.

The remaining primate species, Homo sapiens, is the only living hominid and is found in most regions of the world. The primate classification presented here is often referred to as the traditional one since it is based on the level or grade of organization of the different primate groups. Table 1.1 presents a classification of living ...

2015年10月16日 · With the development of intensive field primatology in the 1960s, the ability to understand primate teeth in the context of detailed ecology and behavior emerged. Today, when combined with new and advanced technologies, we have the ability to understand more thoroughly the interactions between dental form, function, and the environments within ...

2020年11月1日 · In the Cayo Santiago rhesus macaques, honing premolar breadth is closely genetically correlated with postcanine tooth dimensions and weakly genetically correlated with canine dimensions. The overall size of the honing premolar may therefore be affected and constrained by selection acting on premolar and molar dimensions.

2002年2月21日 · Cusp patterning on living and extinct primate molar teeth plays a crucial role in species diagnoses, phylogenetic inference, and the reconstruction of the evolutionary history of the primate...