| Registro completo |
| Provedor de dados: |
Anais da ABC (AABC)
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| País: |
Brazil
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| Título: |
A new Mammutidae (Proboscidea, Mammalia) from the Late Miocene of Gansu Province, China
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| Autores: |
MOTHÉ,DIMILA
AVILLA,LEONARDO S.
ZHAO,DESI
XIE,GUANGPU
SUN,BOYANG
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| Data: |
2016-03-01
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| Ano: |
2016
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| Palavras-chave: |
Evolution
Longirostrine symphysis
Mammutidae
Miocene
Proboscidea
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| Resumo: |
ABSTRACT The "Yanghecun specimen", a proboscidean specimen represented by a mandible from Miocene of China and previously described as Gomphotheriidae, is here reviewed and described as a new genus and species of Mammutidae: Sinomammut tobieni. This taxon is a longirostrine mastodon, lacking lower tusks, and bearing a wide last molar with oblique and non-inflated lophids, broad transverse interlophids, and yoke-like wear figures. Phylogenetic analysis of Mammutidae based on dental and mandibular features recovered S. tobieni as sister group of the mastodon Mammut. The longirostrine condition and the well-developed lower incisors seem to be primitive for Mammutidae, while the brevirostry is the derived condition, probably emerged during the middle Miocene (12-11 Mya). However, two derived conditions are recognized to the lower tusks: the absence of lower tusks (S. tobieni) and the occasional presence of vestigial lower tusks (Mammut).
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000100065
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| Editor: |
Academia Brasileira de Ciências
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| Relação: |
10.1590/0001-3765201520150261
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| Formato: |
text/html
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| Fonte: |
Anais da Academia Brasileira de Ciências v.88 n.1 2016
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| Direitos: |
info:eu-repo/semantics/openAccess
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