A chroniosuchid from the Triassic of Kyrgyzstan and analysis of chroniosuchian relationships
A chroniosuchid from the Triassic of Kyrgyzstan and analysis of chroniosuchian relationships
复制标题
吉尔吉斯斯坦三叠纪的计时鳄及计时鳄关系分析
DOI:
10.1111/j.1096-3642.2009.00613.x
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发表时间:
2010
影响因子:
2.8
通讯作者:
Buchwitz
中科院分区:
文献类型:
--
作者:
Schoch;Buchwitz
A nearly complete skull and associated osteoderms from the Middle/Upper Triassic Madygen Formation of Kyrgyzstan are referred to a new chroniosuchid genus and species. The new taxon is characterized by a parabolic skull outline, pustular ornamentation, tabular-squamosal contact, marked postparietal embayments, and the lack of an antorbital fontanelle. The palate is only preserved in part, showing broad palatines and ectopterygoids. Presence of a preorbital fenestra and characteristic osteoderm morphology are synapomorphies shared with all other chroniosuchids. According to the phylogenetic analysis performed, the new chroniosuchid nests withChroniosaurus, with which it shares the wide, transversely extended osteoderms and pustular ornamentation. The chroniosuchians are robustly supported as a natural group, but their position within the reptiliomorph (stem-amniote) clade is not adequately understood. Whereas the parasphenoid is similar to that of anthracosaurs, most other characters support a higher nesting of chroniosuchians within the stem-amniotes.
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DOI:
10.1017/s0263593300006179
发表时间:
1993
影响因子:
1.2
作者:
J. Clack
通讯作者:
J. Clack
影响因子:
--
作者:
M. Ruta;M. Coates;D. Quicke
通讯作者:
D. Quicke
DOI:
--
发表时间:
2003
期刊:
Transactions of the Royal Society of Edinburgh: Earth Sciences
影响因子:
--
作者:
S. Sequeira
通讯作者:
S. Sequeira
DOI:
--
发表时间:
1998
期刊:
影响因子:
--
作者:
V. Golubev
通讯作者:
V. Golubev
DOI:
--
发表时间:
1987
期刊:
影响因子:
--
作者:
J. Clack
通讯作者:
J. Clack