Evidence for lack of choanae in the porolepiformes

被引：1
|
作者：
Clement, G [1 ]
机构：
[1] Museum Natl Hist Nat, UMR 8569 CNRS, Lab Paleontol, F-75005 Paris, France
来源：
JOURNAL OF VERTEBRATE PALEONTOLOGY | 2001年 / 21卷 / 04期
关键词：
D O I：
10.1671/0272-4634(2001)021[0795:EFLOCI]2.0.CO;2
中图分类号：
Q91 [古生物学];
学科分类号：
0709 ; 070903 ;
摘要：
New material from the Emsian (Lower Devonian) of Spitsbergen, consisting of lower jaws and the ethmosphenoid portion of skulls, allows the elucidation of the relations between the dermopalatine, the vomer and the ethmoid region in porolepiformes. It shows that the fenestra endochoanalis was certainly occluded by the ethmoidal process of the palatoquadrate and that a fenestra exochoanalis is not present between the vomer, dermopalatine, maxilla and premaxilla.
引用
收藏
页码：795 / 802
页数：8
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