錐海膽
錐海膽(學名:Conulus),又名錐尾海膽,是一屬已滅絕的海膽,其化石主要分布在亞洲、歐洲及北美。牠們的體殼為圓形,當從頂部看時為近五邊形,從側面看時則為錐形。基座扁平或凹入,口位於基座的中心,而肛門則位於基座的邊緣。體殼的表面有許多很小的刺瘤,刺瘤上長有氈狀小棘刺。錐海膽生活在海底,於鬆軟的泥中犁行以覓食。[1][2]
錐海膽屬 化石時期:白堊紀
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科學分類 | |
界: | 動物界 Animalia |
門: | 棘皮動物門 Echinodermata |
綱: | 海膽綱 Echinoidea |
目: | 斜海膽目 Echinoneoida |
科: | 錐海膽科 Conulidae |
屬: | †錐海膽屬 Conulus Leske, 1778 |
種 | |
物種
編輯- Conulus campaniformis Melikov & Endel'man,1963
- Conulus castaneus (Brongniart, 1822)
- Conulus chiapasensis Lambert, 1936
- Conulus chiesai Airaghi, 1939
- Conulus cubensis Sánchez Roig, 1949
- Conulus grauensis Currie, 1943
- Conulus kubatliensis Melikov, 1988
- Conulus matesovi Moskvin & Poslavskaya, 1959
- Conulus mixtus (Defrance, 1820)
- Conulus mullerriedi Lambert, 1935
- Conulus parravanoi Checchia-Rispoli, 1932
- Conulus praenuntius Carter, 1928
- Conulus rothomagensis (Sismonda, 1844)
- Conulus sanfilippoi Checchia-Rispoli, 1930
- Conulus stephensoni Cooke, 1953
- Conulus subrotundus Mantell, 1822
- Conulus tradis Lees, 1928
- Conulus zinai Airaghi, 1939
參考文獻
編輯- ^ Cyril Walker; Davod Ward. 自然珍藏系列──化石圖鑑. 自然珍藏系列. 台灣新北市: 貓頭鷹出版社. 2002-02: 180 (中文(繁體)).
- ^ Walker, Cyril; Ward, David. Fossils. Smithsonian Handbooks revised, illustrated. Dorling Kindersley. 2002: 180. ISBN 0789489848.
外部連結
編輯- Conulus (頁面存檔備份,存於網際網路檔案館) in the Paleobiology Database