環蛸枕 特徵 物種 參考文獻 导航菜单Linthia

裂星海膽科白堊紀動物古新世動物始新世動物


學名屬滅絕海膽上白堊紀始新世化石非洲亞洲歐洲北美洲南美洲心海膽花瓣生殖卵精子





 

如何讀生物分類框
環蛸枕
化石時期： 晚白堊紀至始新世


科學分類

















界：

動物界 Animalia

門：

棘皮動物門 Echinodermata


亞門：

海膽亞門 Echinozoa

綱：

海膽綱 Echinoidea


亞綱：

真海膽亞綱 Euechinoidea

目：

蝟團目 Spatangoida

科：

裂星海膽科 Schizasteridae

屬：

環蛸枕屬 Linthia
Desor, 1853

種

見內文


環蛸枕（學名：Linthia），又名林西海膽，是一屬已滅絕的海膽。牠們生存於上白堊紀至始新世。其化石分佈在非洲、亞洲、歐洲、北美洲及南美洲。[1]



特徵


環蛸枕是一種很小、緊密的心海膽，在其前端有很突出的深凹口，線條分明的花瓣狀步帶長有孔。頂盤上四個大生殖孔用於排放卵和精子。牠們生活在鬆軟沉積的洞穴裡。[2]



物種



  • Linthia aguayoi Sánchez Roig, 1949


  • Linthia alta Sánchez Roig, 1949


  • Linthia arabica Clegg, 1933


  • Linthia atolladosae Sánchez Roig, 1951


  • Linthia avilensis Sánchez Roig, 1949


  • Linthia balboi Airaghi, 1939


  • Linthia boreasteria Nisiyama, 1968


  • Linthia brodermanni Sánchez Roig, 1949


  • Linthia bulgarica Gocev, 1933


  • Linthia caraibensis Jeannet, 1928


  • Linthia cretacica Sánchez Roig, 1949


  • Linthia dainellii Stefanini, 1928


  • Linthia darderi Lambert, 1935


  • Linthia desioi Airaghi, 1934


  • Linthia garciai Sánchez Roig, 1952


  • Linthia gibba Lambert, 1933


  • Linthia gonzalezmunozi Sánchez Roig, 1952


  • Linthia hanoverensis Kellum, 1926


  • Linthia hargeisensis Currie, 1943


  • Linthia heimei Jeannet, 1936


  • Linthia hollandi Barry, 1942


  • Linthia maverickensis Gardner, 1933


  • Linthia mortenseni Checchia-Rispoli, 1950


  • Linthia mullerriedi Lambert, 1935


  • Linthia obesa Arnold & H.L. Clark, 1934


  • Linthia praenipponica Nagao, 1928


  • Linthia pseudoglobalis Thirring, 1936


  • Linthia rolandi Castex, 1930


  • Linthia somaliensis Currie, 1927


  • Linthia suitensis Jeannet, 1936


  • Linthia taiwanensis Hayasaka, 1948


  • Linthia trechmanni Hawkins, 1924


  • Linthia yessoensis Minato, 1950


參考文獻




  1. ^ Linthia in the Paleobiology Database


  2. ^ Walker, Cyril; Ward, David. Fossils. Smithsonian Handbooks revised, illustrated. Dorling Kindersley. 2002: 183. ISBN 0789489848. 








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