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Temporal range: Miocene to present
Somniosus microcephalus.jpg
Greenland shark, Somniosus microcephalus
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Order: Squaliformes
Family: Somniosidae
Genus: Somniosus
Lesueur, 1818

Somniosus is a widely distributed genus of deepwater dogfish sharks in the family Somniosidae.[2] Several members of the genus are believed to attain lengths up to 7 m, thus rank among the largest of sharks.


See also[edit]


  1. ^ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Chondrichthyes entry)". Bulletins of American Paleontology 364: 560. 
  2. ^ Yano, K.; Stevens, J. D.; Compagno, L. J. V. (December 2004). "A review of the systematics of the sleeper shark genus Somniosus with redescriptions of Somniosus (Somniosus) antarcticus and Somniosus (Rhinoscymnus) longus (Squaliformes: Somniosidae)". Ichthyological Research (Springer) 51 (4): 360–373. doi:10.1007/s10228-004-0244-4. Retrieved 2012-02-15.