A New Archosauriform Reptile with Distinctive Teeth from the Middle Triassic (Ladinian) of Germany
A New Archosauriform Reptile with Distinctive Teeth from the Middle Triassic (Ladinian) of Germany
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德国中三叠纪(拉丁纪)一种具有独特牙齿的新主龙类爬行动物
DOI:
10.1080/02724634.2020.1764968
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发表时间:
2020
影响因子:
1.4
通讯作者:
Sobral
中科院分区:
文献类型:
--
作者:
Schoch;Sobral
Skeletal remains of a small reptile with a distinctive dentition from the Lower Keuper (Erfurt Formation; Middle Triassic, Ladinian) of the Schumann quarry near Eschenau, in the municipality of Vellberg in Baden-Württemberg, Germany, represent a new taxon of non-archosaurian archosauriforms,Polymorphodon adorfi. It is diagnosed by various craniodental autapomorphies, including mesial and distal carinae of labiolingually flattened maxillary and dentary tooth crowns with large, somewhat hook-shaped denticles aligned at distinct angle to apicobasal axis of tooth crown; premaxilla with long, leaf-shaped posterodorsal process that is slightly longer than body of element; presence of prominent lateral fossa on premaxilla anteroventral to external narial fenestra; premaxilla with five gently recurved, conical teeth; medial surface of maxilla with distinct ledge above the interdental plates; and maxilla and dentary with distinctly heterodont dentition. Phylogenetic analysis recoveredPolymorphodon adorfiin a position crownward ofErythrosuchus africanusbut in an unresolved polytomy with derived non-archosaurian archosauriforms such as Proterochampsidae andEuparkeria capensisand with Archosauria. The maxillary and dentary teeth ofPolymorphodon adorfidiffer from those of other non-archosaurian archosauriforms and indicate a different, possibly omnivorous diet, suggesting that these reptiles were more diverse in terms of feeding habits than previously assumed.
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影响因子:
4.6
作者:
G. Sobral;T. Simões;R. Schoch
通讯作者:
G. Sobral;T. Simões;R. Schoch
影响因子:
2.8
作者:
R. Schoch
通讯作者:
R. Schoch
影响因子:
56.9
作者:
H. Osborn
通讯作者:
H. Osborn
DOI:
10.1111/j.1096-3642.2008.00444.x
发表时间:
2009-02-01
影响因子:
2.8
作者:
Damiani, Ross;Schoch, Rainer R.;Gastou, Stephanie
通讯作者:
Gastou, Stephanie
影响因子:
--
作者:
G. Boulenger
通讯作者:
G. Boulenger