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中真鳄类

中真鳄类
化石时期:199–0 Ma
诺托鳄
科学分类 编辑
界: 动物界 Animalia
门: 脊索动物门 Chordata
纲: 爬行纲 Reptilia
演化支 坚颅类 Solidocrania
演化支 鳄型类 Crocodyliformes
演化支 中真鳄类 Mesoeucrocodylia
Whetstone & Whybrow, 1983 [1]

中真鳄类学名Mesoeucrocodylia)是个鳄形超目演化支。用来取代并系群中鳄亚目。中真鳄类出现于侏罗纪早期,并存活到现代。

Crocodilaemus robustus

长久以来,中鳄亚目被认为是个位于原始原鳄类到现存真鳄类的演化等级[1],Benton与Clark在1988年提出一个种系发生学研究,证实真鳄亚目(包括所有现存鳄鱼物种),是包含在中鳄亚目之下的。因为古生物学家并不接受并系群,所以他们建立中真鳄类演化支来取代中鳄亚目。中真鳄类相当于鳄形动物Crocodyliformes)除去原始的原鳄类。

目前有数个特征可用来鉴定中真鳄类,例如:额骨互相愈合成一块、具有初步的次生颚,由腭骨的后缘延伸形成、耳孔的后缘接触者鳞状骨[2]

分类

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  • 中真鳄类 Mesoeucrocodylia
    • †印度河暴鳄属 Induszalim
    • †厚吻鳄属 Pachycheilosuchus
    • 滇中龙属 Dianchungosaurus
    • †葡萄牙鳄属 Lusitanisuchus
    • 内乌肯鳄属 Neuquensuchus
    • 西蜀鳄科 Hsisosuchidae
    • †萨特鳄超科 Shartegosuchoidea
      • †峡谷鳄属 Zosuchus
      • †山东鳄属 Shantungosuchus
      • 四川鳄属 Sichuanosuchus
      • †河东鳄属 Hadongsuchus
      • †萨特鳄科 Shartegosuchidae
        • †阿德扎尔鳄属 Adzhosuchus
        • †弗鲁塔鳄属 Fruitachampsa
        • †赫河鳄属 Kyasuchus
        • †诺文鳄属 Nominosuchus
        • †萨特鳄属 Shartegosuchus
    • 后鳄类 Metasuchia
      • †扁锯齿鳄类 Ziphosuchia
        • †多拉托鳄属 Doratodon
        • †微鳄属 Microsuchus
        • †西贝鳄亚目 Sebecia
        • 诺托鳄亚目 Notosuchia
      • 新鳄类 Neosuchia

种系发生学

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以下根据Larsson与Sues在2007年的研究[3]

中真鳄类 

海鳄亚目

 原鳄目 

诺托鳄类

西贝鳄类

 新鳄类 

大头鳄科

阔坚齿鳄

海氏鳄属

马任加鳄

鳄目 Crocodilia (现代鳄鱼)

相关条目

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参考资料

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  1. ^ 1.0 1.1 Whetstone KN, Whybrow PJ. 1983. A “cursorial” crocodilian from the Triassic of Lesotho (Basutoland), southern Africa. Occasional Papers of the Museum of Natural History. The University of Kansas 106: 1–37.
  2. ^ Clark, J. M. Patterns of evolution in Mesozoic Crocodyliformes In N.C. Fraser and H. D. Sues (editors), In the shadow of dinosaurs. Cambridge: Cambridge University Press. 1994: 84–97. 
  3. ^ Larsson HCE, Sues H-D. 2007. Cranial osteology and phylogenetic relationships of Hamadasuchus rebouli (Crocodyliformes: Mesoeucrocodylia) from the Cretaceous of Morocco. Zoological Journal of the Linnean Society 149: 533-567.

外部链接

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中真鳄类
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