Helmolepis

Helmolepis is an extinct genus of prehistoric bony fish that lived during the Early Triassic epoch in what is now Greenland, Madagascar and Canada (British Columbia).[1] Species of Helmolepis are small (between 5 centimetres (0.16 ft) and 8 centimetres (0.26 ft)). This genus is closely related with Platysiagum.

Helmolepis Temporal range: Early Triassic[1] PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Subphylum:	Vertebrata
Infraphylum:	Gnathostomata
Class:	Osteichthyes
Subclass:	Actinopterygii
Order:	†Perleidiformes
Family:	†Platysiagidae
Genus:	†Helmolepis Stensiö, 1932
Type species
†Helmolepis gracilis Stensiö, 1932
Other species
†Helmolepis cyphognatha †Helmolepis manis

See also

• Prehistoric fish
• List of prehistoric bony fish

References

1. Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology. 364: 560. Archived from the original on 2008-04-30. Retrieved 2009-02-27.

Further reading

• Mutter, Raoul J. (2005). "Re-assessment of the genus Helmolepis Stensiö 1932 (Actinopterygii: Platysiagidae) and the evolution of Platysiagids in the Early-Middle Triassic". Eclogae Geologicae Helvetiae. 98 (2): 271–280. doi:10.1007/s00015-005-1164-7.
• Neuman, Andrew G.; Mutter, Raoul J. (2005). "Helmolepis cyphognathus, sp. nov., a new platysiagid actinopterygian from the Lower Triassic Sulphur Mountain Formation (British Columbia, Canada)". Canadian Journal of Earth Sciences. 42: 25–36. doi:10.1139/e04-096.