ammonites
Acrotemnus Agassiz 1843 (ray-finned fish)

Actinopteri - Pycnodontiformes - Pycnodontidae

Full reference: L. Agassiz. 1843. Recherches Sur Les Poissons Fossiles. Tome I (livr. 18). Imprimerie de Petitpierre, Neuchatel xxxii-188

Parent taxon: Pycnodontes according to C. Arambourg and L. Joleaud 1943

Sister taxa: Anomoeodus, Athrodon, Callodus, Coccodus, Coelodus, Gyrodus, Iemanja, Macromesodon, Mesodon, Microdon, Microdus, Neoproscinetes, Nonaphalagodus, Nursallia, Omphalodus, Palaeobalistum, Paramicrodon, Proscinetes, Pycnodontinae, Pycnodus, Sphaerodus, Stemmatodus, Tepexichthys, Xenopholis

Subtaxa: Acrotemnus faba

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Ecology: nektonic carnivore