Biology:Hoplopteryx
From HandWiki
Short description: Extinct genus of fishes
| Hoplopteryx Temporal range: Cretaceous
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| Hoplopteryx specimen | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Trachichthyiformes |
| Family: | Trachichthyidae |
| Genus: | †Hoplopteryx Agassiz (1839) |
| Species | |
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Hoplopteryx is an extinct genus of Trachichthyidae from the Cretaceous.
Biology
Hoplopteryx has a dorsal fin supported by nine unjointed, bony rays, deeply forked, homocercal tail, a moderately developed anal fin, and a pelvic fin located well forward. The snout is quite short, the eyes fairly large, and both jaws of the upturned mouth hold small teeth.
Habitat
Hoplopteryx was a marine fish, living in shallow chalk seas.
Size
Hoplopteryx was at a typical length 27 cm.
Sources
- Fossils (Smithsonian Handbooks) by David Ward (Page 219)
- Grandstaff, Barbara S.; Parris, David C. (2016). "A new species of Hoplopteryx from the Carlile Formation (Cretaceous) of South Dakota" (in en). Proceedings of the South Dakota Academy of Science 95: 73–84.
External links
- Hoplopteryx in the Paleobiology Database
Wikidata ☰ Q1091816 entry
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