Belantsea

Belantsea (named after a legendary ancestor of the Crow Tribe) is a genus of extinct petalodontiform cartilaginous fish that lived during the Early Carboniferous. Fossils of Belantsea montana have been found in the Bear Gulch Limestone lagerstätte, and are preserved in exceptional detail. Its body was tall and compressed, with large pectoral fins and a small tail fin. This body plan suggests a lifestyle similar to modern reef fish, and it is thought that Belantsea was adapted for life in reefs of sponges. Its few, large, triangular teeth suggest a diet of hard-shelled marine invertebrates. The genus contains two species, B. montana and B. occidentalis.^[2]

Belantsea Temporal range: Lower Carboniferous
Holotype of Belantsea montana
Life restoration of B. montana
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Subclass:	Holocephali
Order:	†Petalodontiformes
Family:	†Belantseidae
Genus:	†Belantsea Lund, 1989[1]
Type species
Belantsea montana Lund, 1989
Species
Belantsea montana Lund, 1989 Belantsea occidentalis (St. John and Worthen, 1875)
Synonyms
Ctenopetalus occidentalis St. John and Worthen, 1875