扭月貝屬
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 Strophomena costellata
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| Strophomena rugosa Hall, 1847 | ||||||||||||||||||
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見內文 |
扭月貝屬（學名：Strophomena）是扭月貝科扭月貝亞科下已滅絕的一個屬，生存在奧陶紀至泥盆紀的海洋中。[1]
特徵
這種腕足動物的體型為中等大小，其外殼有一凸起的臂狀瓣和凹入的腳狀瓣，沿著鉸合線展開時達到最寬。臂狀瓣的內部有很發達的窩孔和一個展肌肌肉附著的、從鉸合線上升起的突出物。牠們的足孔很小，而且被一骨板部分遮住。兩瓣上均有纖細的翅脈飾紋，這些花紋朝殼的前部擴散開來。殼上的小孔說明牠們可任意躺下，休息時臂狀瓣朝下躺在鬆軟的沉積物中。[1]
物種[2]
- Strophomena (Actinomena) Opik, 1930
- Strophomena (Strophomena) Rafinesque & De Blainville, 1824
- Strophomena (Tetraphalerella) Wang, 1949
- Strophomena aesopea Barrande, 1879
- Strophomena arcuata Shaler, 1865
- Strophomena billingsi Winchell & Schuchert, 1893
- Strophomena cancellata Portlock, 1843
- Strophomena compressa Sowerby, 1823
- Strophomena concordensis Foerste, 1909
- Strophomena depressa Vanuxem, 1842
- Strophomena emaciata Winchell & Schuchert, 1892
- Strophomena filitexta Hall, 1847
- Strophomena folium Barrande, 1879
- Strophomena girvanensis Reed, 1944
- Strophomena grandes Okulitch, 1935
- Strophomena hollii Davidson, 1871
- Strophomena huronensis Foerste, 1912
- Strophomena incurvata Shephard, 1838
- Strophomena lata Spjeldnaes, 1957
- Strophomena magna Wilson, 1945
- Strophomena maysvillensis Foerste, 1909
- Strophomena nutans Hall & Clarke, 1892
- Strophomena occidentalis Foerste, 1912
- Strophomena pectenoides Andreeva, 1961
- Strophomena pectinoides Andreeva, 1961
- Strophomena planoconvexa Hall, 1847
- Strophomena planumbona Hall, 1847
- Strophomena plattinensis Fenton, 1928
- Strophomena rukavishnikovae Nikitina, 1985
- Strophomena satterfieldi Amsden, 1974
- Strophomena scofieldi Winchell & Schuchert, 1892
- Strophomena septata Winchell & Schuchert, 1892
- Strophomena trilobata Owen, 1852
- Strophomena vetusta James, 1874
參考文獻
- ^ 1.0 1.1 Walker, Cyril; Ward, David. Fossils. Smithsonian Handbooks revised, illustrated. Dorling Kindersley. 2002: 88. ISBN 0789489848.
- ^ Fossilworks: Strophomena. [2018-02-15] （英语）.
外部連結
- Strophomena in the Paleobiology Database