Abstract：
:The sample of Anapithecus from Rudabánya, Hungary, is remarkable in preserving a large number of immature individuals. We used perikymata counts, measurements of root length and cuspal enamel thickness, and observations of the sequence of tooth germs that cross match specific developmental stages in Anapithecus to construct the first composite picture and time scale for dental development in a pliopithecoid (Catarrhini, Primates). We conclude that the age of eruption of M1 in Anapithecus was similar to various macaque species (approximately 1.45 months), but that M2 and M3 emergence were close to 2.2 and 3.2 years, respectively (both earlier than expected for similarly sized cercopithecoids). There may have been little difference in individual tooth formation times between cercopithecoids and Anapithecus, but the degree of molar overlap during M1, M2, and M3 crown development, which is extreme in Anapithecus, is fundamentally different. Overall dental development in Anapithecus was very rapid. Old World monkeys appear derived in lacking significant molar overlap, and hominoids may be derived in having longer tooth formation times, both resulting in longer overall dental development times. This is consistent with the general conclusion that the Pliopithecoidea is an outgroup to the Cercopithecoidea and the Hominoidea. On the other hand, rapid dental formation in Anapithecus may be an apomorphy indicative of an unusually rapid life history or unique pressures related to diet and maturation. Folivory and/or predation pressure may be responsible for generating selection to more rapidly erupt permanent teeth and possibly attain adult body masses in Anapithecus. Whatever the case, Anapithecus, with an M3 emergence of approximately 3.2 years, is dramatically faster than any extant catarrhine of similar body mass. This represents yet another unusual attribute of this poorly known fossil catarrhine.
journal_name
J Hum Evoljournal_title
Journal of human evolutionauthors
Nargolwalla MC,Begun DR,Dean MC,Reid DJ,Kordos Ldoi
10.1016/j.jhevol.2005.03.008subject
Has Abstractpub_date
2005-07-01 00:00:00pages
99-121issue
1eissn
0047-2484issn
1095-8606pii
S0047-2484(05)00060-6journal_volume
49pub_type
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journal_title：Journal of human evolution
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journal_title：Journal of human evolution
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journal_title：Journal of human evolution
pub_type： 杂志文章
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journal_title：Journal of human evolution
pub_type： 历史文章,杂志文章
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journal_title：Journal of human evolution
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journal_title：Journal of human evolution
pub_type： 杂志文章
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journal_title：Journal of human evolution
pub_type： 杂志文章
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journal_title：Journal of human evolution
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journal_title：Journal of human evolution
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journal_title：Journal of human evolution
pub_type： 杂志文章
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journal_title：Journal of human evolution
pub_type： 杂志文章
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journal_title：Journal of human evolution
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journal_title：Journal of human evolution
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journal_title：Journal of human evolution
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journal_title：Journal of human evolution
pub_type： 杂志文章
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更新日期：2008-08-01 00:00:00
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journal_title：Journal of human evolution
pub_type： 杂志文章
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更新日期：2017-06-01 00:00:00
abstract：:In apes, the mandibular third premolar (P3) is adapted for a role in honing the large upper canine. The role of honing was lost early in hominin evolution, releasing the tooth from this functional constraint and allowing it to respond to subsequent changes in masticatory demands. This led to substantial morphological ...
journal_title：Journal of human evolution
pub_type： 杂志文章
doi：10.1016/j.jhevol.2019.06.004
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