Biology:Cosmacanthus

Short description: Extinct genus of fish

Cosmacanthus Temporal range: Late Devonian, 360.7–358.9 Ma PreЄ Є O S D C P T J K Pg N ↓
Fossil of Cosmacanthus semistiatus - picture taken at Natural History Museum, Bonn University
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	†Placodermi
Order:	†Arthrodiriformes
Suborder:	†Phlyctaeniida
Infraorder:	†Phlyctaeniina
Family:	†Groenlandaspididae
Genus:	†Cosmacanthus Agassiz, 1845
Species
†C. bullatus (Saint John & Worthen, 1875) Hay, 1902 †C. carinatus Davis, 1883 †C. malcolmsoni (Agassiz, 1844) †C. marginalis Davis, 1883 †C. priscus (Mcoy, 1848) †C. sellatus (Saint John & Worthen, 1875 (Hay, 1902) †C. semistriatus
Synonyms
Geisacanthus bullatus Satint John & Worthen, 1875 Geisacanthus stellatus Satint John & Worthen, 1875

Cosmacanthus is an extinct genus of placoderms in the extinct family Groenlandaspididae that lived during the Late Devonian in Ireland, the UK, Russia and North America. It was named by Louis Agassiz in 1845.

Names brought to synonymy

• †Cosmacanthus elegans, a synonym for †Nemacanthus elegans Evans, 1904 (elasmobranch)

See also

• List of placoderm genera

External links

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• Cosmacanthus at fossilworks.org

Wikidata ☰ Q30692667 entry