The mixosaurid ichthyosaur Phalarodon from the middle Triassic of China

被引：0

作者：

Jiang, DY ^{[1
]}

Hao, WC

Sun, YL

Maisch, MW

Matzke, AT

机构：

[1] Peking Univ, Geol Museum, Beijing 100871, Peoples R China

[2] Peking Univ, Dept Geol, Beijing 100871, Peoples R China

[3] Univ Tubingen, Inst Geol & Palaeontol, D-72076 Tubingen, Germany

[4] Univ Tubingen, Museum Geol & Palaontol, D-72076 Tubingen, Germany

来源：

NEUES JAHRBUCH FUR GEOLOGIE UND PALAONTOLOGIE-MONATSHEFTE | 2003年 / 11期

关键词：

ICHTHYOPTERYGIA; CONTECTOPALATUS; PHYLOGENY;

D O I：

暂无

中图分类号：

Q91 [古生物学];

学科分类号：

0709 ; 070903 ;

摘要：

A skeleton of a mixosaurid ichthyosaur from the Anisian Guanling Formation of Guizhou Province (southwestern China) is the first record of the genus Phalarodon from the People's Republic of China. Autapomorphies of Phalarodon clearly shown in the material are mesiodistally elongated, laterally compressed teeth of the posterior dentary region and very wide and blunt teeth of the maxilla which are longer than high, as well as a high sagittal crest. The specimen is the first record of the genus from the eastern Tethys and underlines the cosmopolitan distribution of this mixosaurid genus. Phalarodon is currently the most long-lived and widely distributed Triassic ichthyosaur genus. Reason for this might be its strongly heterodont dentition which allowed it to cope with a wider variety of food items than other ichthyosaurs, making Phalarodon a generalist feeder.

引用

页码：656 / 666

页数：11