Bobasatrania

Bobasatrania
Temporal range: Late Permian to Triassic
Bobasatrania slab and counterslab fossils at the Geological Museum in Copenhagen
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclass: Osteichthyes
Order: Bobasatraniiformes
Family: Bobasatraniidae
Genus: Bobasatrania
White, 1932
species
  • Bobasatrania canadensis Lambe, 1914
  • Bobasatrania ceresiensis Bürgin, 1992
  • Bobasatrania groenlandica Stensiö, 1932
  • Bobasatrania mahavavica White, 1932 (type species)
  • Bobasatrania nathorsti Stensiö, 1921
Synonyms
  • Platysomus nathorsti Stensiö, 1921

Bobasatrania is an extinct genus of prehistoric bony fish that survived the Permian-Triassic extinction event.

Restoration
Fossil of Bobasatrania canadensis (AMNH 6210)

The genus originated during the late Permian, survived the Permian-Triassic extinction event, and underwent a speciation event during the Triassic (approx 240M years BP) in the shallow coastal waters off the Pangaean supercontinent. Their fossils are therefore found throughout the world,[1] with some of the best examples coming from the Wapiti Lake region of British Columbia, Canada.[2] They have a distinctive diamond-shaped body, forked tail and long thin pectoral fins. The larger Permian species are up to a metre in length, though the Triassic species are considerably smaller. The structure of their teeth suggests they fed on small shelled animals.

References

  1. Nielsen, Eigil. A preliminary note on Bobasatrania groenlandica. Meddr. Dansk geol. Forening, 12 (2), 197-204.
  2. "Archived copy". Archived from the original on 2009-12-21. Retrieved 2009-11-13. Past Lives: Chronicles of Canadian Paleontology

See also

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