Ankistrorhynchus is an extinct genus of sclerorhynchoid from the Cretaceous Period. It is known only isolated rostral teeth from two species. A. lonzeensis is named for its type locality of Lonzée, Belgium. It is from the lower Santonian stage.Suárez, M. E., & Cappetta, H. (2004). Sclerorhynchid teeth (Neoselachii, Sclerorhynchidae) from the late Cretaceous of the Quiriquina formation, central Chile. Andean Geology, 31(1), 89-103. A. washakiensis was described from the Campanian-aged Mesaverde Formation of Wyoming, USA. CASE, G.R. (1987) A new selachian fauna from the Late Campanian of Wyoming (Teapot Sandstone Member, Mesaverde Formation, Big Horn Basin). Palaeontographica, Abt. A, 197 (1–3): 1–37, 12 fig., 15 pl., 3 tabl. The species A. major was named from Campanian/Santonian of New Jersey, USA off of fragmentary material, thus making its validity questionable.
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