海桩 参考文献 导航菜单编辑或修订

絕滅物種海扁果亞門


海角目海帽目棘皮动物化石寒武纪泥盆纪海扁果亚门纲





 

如何讀生物分類框
海桩
化石時期： 中寒武纪–晚泥盆纪

PreЄ

Є

O

S

D

C

P

T

J

K

Pg

N









海桩的化石
海桩的化石


保护状况


绝灭


科學分類









界：

动物界 Animalia

門：

棘皮动物门 Echinodermata


亞門：

海扁果亚门 Homalozoa

綱：

海桩纲 Stylophora
Gill & Caster, 1960
目

†海角目（Cornuta）

†海帽目（Mitrata）


海桩（stylophorans）是一类已灭绝的棘皮动物，化石发现于中寒武纪到晚泥盆纪，是海扁果亚门中人们了解最多的一纲。海桩有形状不规则的萼（Calyx），一些种类的萼上有椭球行鳃裂状靴孔，而有些种类的萼上则为栅状的片孔。



参考文献



  • 费尔布里奇 雅布隆斯基等. 古生物学百科全书（上册） (M)使用|format=需要含有|url= (帮助) 1. 北京: 地质出版社. 1989: 33. ISBN 7-116-00271-5. 

Anning plesiosaur.jpg  這是與古生物相關的小作品。你可以通过编辑或修订扩充其内容。






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