Acrotemnus is an extinct genus of marine pycnodontid ray-finned fish known from Europe, North America, and Africa during the Turonian stage of the Upper Cretaceous. North American species could reach comparatively giant sizes for pycnodonts.
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Acrotemnus is an extinct genus of marine pycnodontid ray-finned fish known from Europe, North America, and Africa during the Turonian stage of the Upper Cretaceous. North American species could reach comparatively giant sizes for pycnodonts.
== Taxonomy == The following species are known: A. faba Agassiz, 1836 - Turonian of England (English Chalk) A. megafrendodon (Shimada, Williamson & Sealey, 2010) - Turonian of New Mexico, USA (Mancos Shale) (=Macropycnodon megafrendodon Shimada, 2010) A. streckeri (Hibbard, 1939) - Turonian of Kansas (Carlile Shale), potentially Texas (Boquillas Formation) (=Coelodus streckeri Hibbard, 1939)
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).