環蛸枕

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

環蛸枕屬
化石时期：晚白堊紀至上新世
科学分类
界： 动物界 Animalia
门： 棘皮动物门 Echinodermata
纲： 海膽綱 Echinoidea
目： 蝟團目 Spatangoida
科： 裂星海膽科 Schizasteridae
属： †环蛸枕属 Linthia
Desor, 1853
種

見內文

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][3]

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
  • 台灣林西海膽 Linthia taiwanensis Hayasaka, 1948
  • Linthia trechmanni Hawkins, 1924
  • Linthia yessoensis Minato, 1950

參考文獻
  1. Linthia in the Paleobiology Database
  2. Cyril Walker; Davod Ward. . 自然珍藏系列. 台灣新北市: 貓頭鷹出版社. 2002-02: 183 （中文（繁體）‎）.
  3. Walker, Cyril; Ward, David. . Smithsonian Handbooks revised, illustrated. Dorling Kindersley. 2002: 183. ISBN 0789489848.
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