Real dog seals

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Real dog seals
Common seal (Phoca vitulina)

Common seal ( Phoca vitulina )

Systematics
Superordinate : Laurasiatheria
Order : Predators (Carnivora)
Subordination : Canine (Caniformia)
without rank: Seals (Pinnipedia)
Family : Dog seals (Phocidae)
Genre : Real dog seals
Scientific name
Phoca
Linnaeus , 1758

The Real dog seals ( Phoca ) are a kind of true seals and comprise two types, including the known seal ( Phoca vitulina ).

Systematics

According to the current status, the real dog seals comprise two types:

In the past, the genus contained numerous other species, which have now merged into different genera. So which is harp seal today as Pagophilus groenlandicus of monotypic genus Pagophilus assigned and the Ringed Seal ( Pusa hispida ) and the two seals freshwater Baikal Seal ( Pusa sibirica ) and Caspian Seal ( Pusa caspica ) are of the genus Pusa assigned.

According to the cladistic analyzes of Bininda-Emonds and Russell, the entire genus was paraphyletic with regard to the bearded seal ( Erignathus barbatus ), and according to Palo and Väinöla possibly also with regard to the gray seal ( Halichoerus grypus ). As a basal species, the Largha seal could probably also be the sister species of all other representatives, and the monophyly of the two freshwater species with the ringed seal is also questioned on a molecular level.

supporting documents

  1. ↑ Don E. Wilson & DeeAnn M. Reeder (eds.): Phoca  ( page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. @1@ 2Template: Dead Link / www.vertebrates.si.edu   in Mammal Species of the World. A Taxonomic and Geographic Reference (3rd ed).
  2. ↑ Olaf RP Bininda-Emonds & AP Russell: A morphological perspective on the phylogenetic relationships of the extant phocid seals (Mammalia: Carnivora: Phocidae). In: Bonn Zoological Monographs. Vol. 41, 1996, pp. 1-256.
  3. ↑ a b Jukka U. Palo, Risto Väinölä: The enigma of the landlocked Baikal and Caspian seals addressed through phylogeny of phocine mitochondrial sequences. In: Biological Journal of the Linnean Society. Volume 88, No. 1, pp. 61-72.

further reading

  • Ronald M. Nowak: Walker's Mammals of the World. Johns Hopkins University Press, 1999, ISBN 0801857899 .
  • Malcolm C. McKenna, Susan K. Bell: Classification of Mammals: Above the Species Level. Columbia University Press, 2000, ISBN 0231110138 .
  • Nigel Bonner: Seals and Sea Lions of the World. Facts on File, 1994, ISBN 0816029555 .

Web links

Commons : Real Dog Seals ( Phoca )  - Collection of images, videos and audio files