环蛸枕
环蛸枕（学名：Linthia），又名林西海胆，是一属已灭绝的海胆。牠们生存于晚白垩纪至上新世。其化石分布在非洲、亚洲、欧洲、北美洲及南美洲。[1]
环蛸枕属 | |
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科学分类 
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| 界： | 动物界 Animalia |
| 门： | 棘皮动物门 Echinodermata |
| 纲： | 海胆纲 Echinoidea |
| 目： | 猬团目 Spatangoida |
| 科： | 裂星海胆科 Schizasteridae |
| 属： | †环蛸枕属 Linthia Desor, 1853 |
| 种 | |
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见内文 | |
特征
环蛸枕是一种很小、紧密的心海胆，在其前端有很突出的深凹口，线条分明的花瓣状步带长有孔。顶盘上四个大生殖孔用于排放卵和精子。牠们生活在松软沉积的洞穴里。[2][3]
物种
- 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
- 台湾林西海胆 Linthia taiwanensis Hayasaka, 1948
- Linthia trechmanni Hawkins, 1924
- Linthia yessoensis Minato, 1950
参考文献
- ^ Linthia （页面存档备份，存于互联网档案馆） in the Paleobiology Database
- ^ Cyril Walker; Davod Ward. 自然珍藏系列──化石圖鑑. 自然珍藏系列. 台湾新北市: 猫头鹰出版社. 2002-02: 183 （中文（繁体））.
- ^ Walker, Cyril; Ward, David. Fossils. Smithsonian Handbooks revised, illustrated. Dorling Kindersley. 2002: 183. ISBN 0789489848.