碟形貝屬
碟形貝屬(學名:),又名滴貝屬,是盤殼科下的一個屬,生存於泥盆紀早期至上新世的非洲、歐洲、北美洲及紐西蘭。[1]牠們利用短小的腳附著在其他殼類上生存。[2]
碟形贝属 化石时期: | |
---|---|
Discinisca lamellosa | |
科学分类 | |
界: | 动物界 Animalia |
门: | 腕足動物門 Brachiopoda |
纲: | 舌形贝纲 Lingulata |
目: | 舌形贝目 Lingulida |
科: | 平圆贝科 Discinidae |
属: | †碟形贝属 Discinisca Gray, 1840 |
種 | |
見內文 |
特徵
該屬具有和緩的圓錐形腳狀瓣和扁平至微突狀的臂狀瓣。殼形從圓形到抹刀形都有,表面有纖細的同心生長線,並有一個很薄的、切口狀的腳孔,腳孔在貝成年時會合上,幼貝的腳孔則是敞開的。殼的前緣十分突出。[2]
物種[3]
- Discinisca circularis Gabb, 1864
- Discinisca conviva Gerassimov, 1955
- Discinisca cumingii Broderip, 1833
- Discinisca holdeni Tate, 1867
- Discinisca jenkinsi Hertlein & Grant, IV 1944
- Discinisca laevis Sowerby, 1822
- Discinisca lamellosa Broderip, 1834
- Discinisca loeli Hertlein & Grant IV, 1944
- Discinisca lugubris Conrad, 1834
- Discinisca messi Damián E. Pérez et al., 2023
- Discinisca oregonensis Dall, 1909
- Discinisca perrini Hertlein & Grant IV, 1944
- Discinisca scutellum Dreger, 1889
- Discinisca spitsbergensis Biernat, 1995
- Discinisca steiningeri Radwanska & Radwanski, 1989
- Discinisca yaroslavensis Gerassimov, 1955
- Discinisca zapfei Radwanski & Summesberger, 2001
參考文獻
- Christian Emig. Emig CC , 编. . World Brachiopoda database. 2010 [February 25, 2012] –WoRMS.
- Walker, Cyril; Ward, David. . Smithsonian Handbooks revised, illustrated. Dorling Kindersley. 2002: 92. ISBN 0789489848.
- . [2018-04-13]. (原始内容存档于2018-04-14) (英语).
- Emig, Christian (2006). Systematics of extant brachiopod taxa
外部連結
- Discinisca in the Paleobiology Database
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