Belonostomus

Belonostomus
Temporal range: Possible Paleocene record
Specimen of B. kochi, Jura Museum
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Aspidorhynchiformes
Family: Aspidorhynchidae
Genus: Belonostomus
Agassiz, 1834
Type species
Aspidorhynchus tenuirostris
Agassiz, 1833
Species

30+, see text

Synonyms

Diphyodus

Belonostomus is an extinct genus of prehistoric ray-finned fish in the order Aspidorhynchiformes. Fossils have been found in marine areas, although some species are known from freshwater habitats.

Usually, it fed on plankton or other tiny fish, but one fossil was found devouring a Homoeosaurus as stomach contents.

Description

Belonostomus, like all aspidorhyncheans, has a pointy rostrum. However, it is thinner compared to other genera like the almost identical Aspidorhynchus. It possesses a long body.

References

  1. Bryant, Laurie J. (1987). "Belonostomus (Teleostei: Aspidorhynchidae) from the Late Paleocene of North Dakota" (PDF). PaleoBios. Museum of Paleontology, University of California Berkeley.