鴉鯊屬(學名:Squalicorax),又稱角鱗鯊屬,是一屬已滅絕的鼠鯊目鯊魚,生存於白堊紀晚期。
命名
鴉鯊的學名 Squalicorax 來自於拉丁語的 squalus(意思為「鯊魚」)與希臘語的 κόραξ "korax" (意思為「渡鴉」)組合而成。
分佈
在美國肯薩斯州發現了一條全長1.9米及完整的鴉鯊屬化石,證明了牠們分佈在西部內陸海道。在歐洲、北非及北美洲其他地方也有發現大量屬於牠們的牙齒。若以已知最大的牙齒來估計,牠們可以長達5米。
食性
鴉鯊屬是掠食者,但從一些鴨嘴龍科的跖骨上也有發現牠們的牙齒,所以估計牠們也是食腐動物[1]。因此,牠們又名烏鴉鯊魚。牠們也會吃龜、滄龍科、乞丐魚屬及其他硬骨魚和海洋生物。在無齒翼龍的骨頭上曾發現有角鱗鯊的齒痕,但是是躍出水面捕捉、趁翼龍潛入水中的時候突襲,或僅是啃食屍體仍無法確認[2]。
物種
- 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
參考
外部連結
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