鸦鲨属(学名:Squalicorax),又称角鳞鲨属,是一属已灭绝的鼠鲨目鲨鱼,生存于白垩纪晚期。
命名
鸦鲨的学名 Squalicorax 来自于拉丁语的 squalus(意思为“鲨鱼”)与希腊语的 κόραξ "korax" (意思为“渡鸦”)组合而成。
分布
在美国肯萨斯州发现了一条全长1.9米及完整的鸦鲨属化石,证明了牠们分布在西部内陆海道。在欧洲、北非及北美洲其他地方也有发现大量属于牠们的牙齿。若以已知最大的牙齿来估计,牠们可以长达5米。
食性
鸦鲨属是掠食者,但从一些鸭嘴龙科的跖骨上也有发现牠们的牙齿,所以估计牠们也是食腐动物[1]。因此,牠们又名乌鸦鲨鱼。牠们也会吃龟、沧龙科、乞丐鱼属及其他硬骨鱼和海洋生物。在无齿翼龙的骨头上曾发现有角鳞鲨的齿痕,但是是跃出水面捕捉、趁翼龙潜入水中的时候突袭,或仅是啃食尸体仍无法确认[2]。
物种
- Squalicorax acutus Siversson et al., 2018
- Squalicorax africanus Cappetta, 1991
- Squalicorax appendiculatus Agassiz in Geinitz, 1839
- Squalicorax baharijensis Stromer, 1927
- Squalicorax bassanii Gemmellaro, 1920
- Squalicorax bazzii Siversson et al., 2018
- Squalicorax bernardezi Guinot, Uunderwood, Cappetta & Ward, 2013
- Squalicorax coquandi Vullo, Cappetta & Neraudeau, 2007
- Squalicorax curvatus Williston, 1900
- Squalicorax falcatus Agassiz, 1843
- Squalicorax heterodon Reuss, 1845
- Squalicorax kaupi Agassiz, 1843
- Squalicorax kugleri Leriche, 1938
- Squalicorax lalunaensis Guinot & Carrillo-Briceño, 2018
- Squalicorax lindstromi Davis, 1890
- Squalicorax moodyi Guinot & Carrillo-Briceño, 2018
- Squalicorax mutabilis Siversson et al., 2018
- Squalicorax primigenius Landemaine, 1991
- Squalicorax priscoserratus Siverson, Lindgren & Kelley, 2007
- Squalicorax pristodontus Agassiz, 1843
- Squalicorax sagisicus Glikman, 1980
- Squalicorax volgensis Glikman, 1971
- Squalicorax yangaensis Dartevelle & Casier, 1943
参考
外部链接
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