枕鰭鯊目(學名:Iniopterygiformes),又稱枕鰭鮫目,為已滅絕的全頭亞綱軟骨魚類,生活在石炭紀,化石發現於美國的蒙大拿州、印第安納州、伊利諾州與內布拉斯加州。胸鰭大,位於身體靠背測;頭部與顎部上具有帶細齒的骨板;眼眶大。枕鰭鮫目物種平均體長約 15—46公分(5.9—18.1英寸),最長可達 50公分(20英寸)。巨大的胸鰭使得牠們得以和現存的飛魚一樣躍出水面滑翔。現存親緣關係最接近的物種為銀鮫。
大部分枕鰭鯊目的物種均屬於西布長吻鮫科,包括 Sibyrhinchus denisoni、Inioptera richardsoni 與 Inioxyele 等。然而其模式種枕鰭鯊(Iniopteryx rushlaui)卻仍然沒有明確的分類,目前置於單型科枕鰭鯊科(Iniopterygidae)之下。
參考文獻
- Richard Lund and Eileen D. Grogan: Relationships of the Chimaeriformes and the Basal Radiation of the Chondrichthyes, Reviews in Fish Biology and Fisheries 7: 65-123. 1997
- Rainer Zangerl: Handbook of Paleoichthyology 3 A. Chondrichthyes I. Paleozoic Elasmobranchii. Gustav Fischer Verlag, New York 1981 (unveränderte Neuauflage Januar 2004) ISBN 3-89937-045-7
- Rainer Zangerl and Gerard Ramon Case: Iniopterygia: a new order of Chondrichthyan fishes from the Pennsylvanian of North America. Fieldiana Geology Memoirs, v. 6, Field Museum of Natural History, 1973 Biodiversity Heritage Library (頁面存檔備份,存於網際網路檔案館) (Volltext, engl.)
- Joseph S. Nelson: Fishes of the World. John Wiley & Sons, 2006, ISBN 0-471-25031-7
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