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''Crassonotidae'' is an extinct family of sharks. It contains eight species in four genera. Crassonotidae, in the order Hexanchiformes.〔A new Jurassic cow shark (Chondrichthyes, Hexanchiformes) with comments on Jurassic hexanchiform systematics. Swiss Journal of Geosciences, 104 (Suppl. 1): 107-114〕〔Thies, D. (1987) Palaeoecology of Lower Cretaceous cow sharks (Neoselachii, Hexanchiformes). Paläontologische Zeitschrift, 61 (1/2): 133-140, 4 fig.〕〔Kriwet, J. & Klug, S. (2013) Dental patterns of basal Hexanchoid sharks (Elasmobranchii, Hexanchiformes). In: SCHWARZ, C. & KRIWET, J. (editors): 6th International Meeting on Mesozoic Fishes - Diversification and Diversity Patterns, Vienna, Austria August 4th-10th, 2013: 42〕〔Kriwet, J. & KLUG, S. (2004) Late Jurassic selachians (Chondrichthyes, Elsamobranchii) from southern Germany: Re-evaluation on taxonomy and diversity. Zitteliana, A 44: 67-95, 20 fig., 2 tabl.〕 ==Species== * ''Crassodontidanus'' Kriwet & Klug, 2011 * * ''Crassodontidanus serratus'' Fraas, 1855 * * ''Crassodontidanus wiedenrothi'' Thies, 1983 * ''Notidanoides'' Maisey, 1986 * * ''Notidanoides muensteri'' Agassiz, 1843 * ''Notidanus'' Cuvier, 1816 * * ''Notidanus amalthei'' Oppel, 1854 * * ''Notidanus atrox'' Ameghino, 1899 * * ''Notidanus intermedius'' Wagner, 1862 * * ''Notidanus nikitini'' Chabakov & Zonov, 1935 * ''Pachyhexanchus'' Cappetta, 1990 * * ''Pachyhexanchus pockrandti'' Ward & Thies, 1987 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Crassonotidae」の詳細全文を読む スポンサード リンク
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