''Acrodus'' (from , 'high' and 'tooth') is an extinct genus of hybodont spanning from the Early

Triassic The Triassic ( ; sometimes symbolized 🝈) is a geologic period and system which spans 50.5 million years from the end of the Permian Period 251.902 million years ago ( Mya), to the beginning of the Jurassic Period 201.4 Mya. The Triassic is t ...

to the

Late Jurassic The Late Jurassic is the third Epoch (geology), epoch of the Jurassic Period, and it spans the geologic time scale, geologic time from 161.5 ± 1.0 to 143.1 ± 0.8 million years ago (Ma), which is preserved in Upper Jurassic stratum, strata.Owen ...

. (The Early Cretaceous species ''"Acrodus" nitidus'' affinity to the genus is questionable.) It was

durophagous Durophagy is the eating behavior of animals that consume hard-shelled or exoskeleton-bearing organisms, such as corals, shelled mollusks, or crabs. It is mostly used to describe fish, but is also used when describing reptiles, including fossil t ...

, with blunt, broad teeth designed for crushing and grinding. Some Middle Triassic species have been suggested to have grown to lengths of . Species are known from both marine and freshwater environments, with all Middle and Late Jurassic species only known from freshwater.

Species

*''Acrodus acuminatus'' *''Acrodus acutus'' *''Acrodus alexandrae'' *''Acrodus alpinus'' *''Acrodus anningiae'' *''Acrodus angustus'' *''Acrodus braunii'' *''Acrodus (Acronemus) bicarenatus *''Acrodus cuneocostatus'' *''Acrodus dolloi'' *''Acrodus falsus'' *''Acrodus flemingianus'' *''Acrodus gaillardoti'' *''Acrodus illingworthi'' *''Acrodus immarginatus'' *''Acrodus jaeckeli'' *''Acrodus kalasinensis'' *''Acrodus keuperinus'' *''Acrodus laevigatus'' *''Acrodus (Acrodonchus) lateralis'' *''Acrodus levis'' *''Acrodus microdus'' *''Acrodus (Acrodonchus) minimus'' *''Acrodus nitidus'' *''Acrodus nobilis'' *''Acrodus olsoni'' *''Acrodus oppenheimeri'' *''Acrodus orbicularis'' *''Acrodus oreodontus'' *''Acrodus pulvinatus'' *''Acrodus rugosus'' *''Acrodus salomoni'' *''Acrodus scaber'' *''Acrodus simplex'' *''Acrodus spitzbergensis'' *''Acrodus striatus'' *''Acrodus substriatus'' *''Acrodus sweetlacruzensis'' *''Acrodus undulatus'' *''Acrodus vermicularis'' *''Acrodus vermiformis'' *''Acrodus virgatus'' *''Acrodus wempliae''

References

{{Taxonbar, from=Q762280 Hybodontiformes Triassic cartilaginous fish Prehistoric fish of Europe Paleogene cartilaginous fish Fossil taxa described in 1837 Prehistoric fish of North America Taxa named by Louis Agassiz