BBC Russian

Thalassoleon Temporal range: Late Miocene

Thalassoleon mexicanus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Carnivora
Clade:	Pinnipedia
Family:	Otariidae
Genus:	†Thalassoleon Repenning and Tedford, 1977
Type species
†Thalassoleon mexicanus Repenning and Tedford, 1977
Species
T. mexicanus T. macnallyae T. inouei?

Thalassoleon ("sea lion"^[1]) is an extinct genus of large fur seal. Thalassoleon inhabited the Northern Pacific Ocean in latest Miocene and early Pliocene. Fossils of T. mexicanus are known from Baja California and southern California. T. macnallyae is known from central California, and T. inouei (which may be a synonym of T. macnallyae) is known from Japan. Thalassoleon could be the ancestor of the modern northern fur seal.

T. mexicanus was comparable in size to the largest modern fur seals, with an old-male skull length of 272 mm and an estimated minimal weight of 295–318 kg (650–700 lb).^[1] Holotype of T. macnallyae, UCMP 112809, is a male equal in size to T. mexicanus.^[1]

References

^ ^a ^b ^c Charles A. Repenning, Richard H. Tedford (1977). Otarioid seals of the Neogene. Geological Survey Professional Paper, Volume 992. Geological Survey (U.S.). pp. 60–69. Retrieved 2022-08-21.

Genera of pinnipeds and their stem-allies

Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Suborder: Caniformia
Infraorder: Arctoidea

Pan-Pinnipedia

†Amphicynodontidae	Allocyon Amphicticeps Amphicynodon Drassonax Kolponomos Pachycynodon Parictis Wangictis
†Semantoridae	Necromites Potamotherium Puijila Semantor

Pinnipedimorpha

†Enaliarctos

Pinnipediformes

†Pacificotaria
†Pinnarctidion
†Pteronarctos

Pinnipedia

Phocidae

†Devinophoca

Monachinae

†Magnotherium
Monachini	†Afrophoca †Auroraphoca †Messiphoca Monachus Neomonachus †Eomonachus †Noriphoca †Palmidophoca †Pliophoca †Pontophoca †Pristiphoca †Terranectes
Miroungini	†Callophoca Mirounga
Lobodontini	†Acrophoca †Australophoca †Hadrokirus †Homiphoca Hydrurga Leptonychotes Lobodon Ommatophoca †Piscophoca †Properiptychus †Virginiaphoca

Phocinae

†Cryptophoca †Frisiphoca †Kawas †Leptophoca †Monachopsis †Monotherium †Phocanella †Prophoca †Sarmatonectes
Erignathini	Erignathus †Platyphoca
Cystophorini	Cystophora †Miophoca †Pachyphoca
Phocini	†Batavipusa †Gryphoca Halichoerus Histriophoca †Nanophoca Pagophilus Phoca †Planopusa †Praepusa Pusa

Otarioidea	see below↓

Otarioidea

†Desmatophocidae

Allodesmus
Atopotarus
Desmatophoca
Eodesmus

Odobenidae

†Archaeodobenus
†Imagotaria
†Kamtschatarctos
†Nanodobenus
†Neotherium
†Osodobenus
†Pelagiarctos
†Pontolis
†Proneotherium
†Prototaria
†Pseudotaria
†Titanotaria

Neodobenia

†Dusignathinae	Dusignathus Gomphotaria
Odobeninae	†Aivukus Odobenus †Ontocetus †Pliopedia †Protodobenus †Valenictus

Panotariidae

†Eotaria

Otariidae

Callorhinae

Callorhinus
†Pithanotaria

Otariinae

†Thalassoleon
Zalophini	Eumetopias †Oriensarctos †Proterozetes Zalophus
Otariini	Arctocephalus Arctophoca †Hydrarctos Neophoca Otaria Phocarctos

Lists
List of pinnipeds List of fossil pinnipedimorphs

This article related to prehistoric animals from order Carnivora is a stub. You can help Wikipedia by expanding it.

This page was last edited on 20 March 2024, at 00:42

Thalassoleon

From Wikipedia, the free encyclopedia

References