Matches in SemOpenAlex for { <https://semopenalex.org/work/W1997727562> ?p ?o ?g. }
Showing items 1 to 80 of
80
with 100 items per page.
- W1997727562 endingPage "308" @default.
- W1997727562 startingPage "285" @default.
- W1997727562 abstract "Abstract Fossil otariid pinnipeds of the extinct genera Prototaria Takeyama and Ozawa, 1984, and Neotherium Kellogg, 1931, known from Middle Miocene deposits bordering the North Pacific Ocean, are small, primitive pinnipeds in the subfamily Imagotariinae. They have a small supraorbital process of the frontal or have lost it entirely, a three-rooted first molar, small paroccipital process, and ear morphology indicating that they belong in the subfamily Imagotariinae. Their unique derived characters include extreme intertemporal constriction and highly modified cheek teeth, the premolars having become molarized by the addition of protocones and lingual cingula. Prototaria Takeyama and Ozawa, 1984, the most primitive known imagotariine genus, contains two species, P. primigena Takeyama and Ozawa, 1984, and P. planicephala Kohno, 1994, both of early Middle Miocene age from Japan. Prototaria has a few derived characters, including a large antorbital process, narrow intertemporal region, and large orbit, but its primitive characters apparently were inherited from enaliarctine ancestors. The long enigmatic Neotherium mirum Kellogg, 1931, of Middle Miocene age from California, USA, is related to Prototaria, but differs by having an elongate skull, very slender zygomatic arch, ventrally exposed median lacerate foramen, and smaller but more molarized premolars. A more primitive new genus and species, Proneotherium repenningi Barnes, related to N. mirum, is from the early Middle Miocene Astoria Formation, coastal Oregon, USA. It shares some derived characters with Prototaria, and shares many other important derived characters with N. mirum. Imagotariines probably arose from some species of Early Miocene enaliarctines, became diverse in Middle and Late Miocene time, and are only known from the North Pacific realm. Although they might include the ancestors of true walruses of the subfamily Odobeninae, no known imagotariines appear to have been adapted for mollusk feeding as are the highly evolved modern walruses. Instead, imagotariines appear to have retained a primitive piscivorous diet, as did the fur seals and sea lions of the subfamily Otariinae." @default.
- W1997727562 created "2016-06-24" @default.
- W1997727562 creator A5018576754 @default.
- W1997727562 creator A5042407220 @default.
- W1997727562 creator A5064600616 @default.
- W1997727562 date "1994-12-01" @default.
- W1997727562 modified "2023-09-24" @default.
- W1997727562 title "Miocene fossil pinnipeds of the genera Prototaria and Neotherium (Carnivora; Otariidae; Imagotariinae) in the North Pacific Ocean: Evolution, relationships and distribution" @default.
- W1997727562 cites W1993832354 @default.
- W1997727562 cites W2004240877 @default.
- W1997727562 cites W2031768666 @default.
- W1997727562 cites W2039335687 @default.
- W1997727562 cites W2042366599 @default.
- W1997727562 cites W2062025378 @default.
- W1997727562 cites W2100894941 @default.
- W1997727562 cites W2147701822 @default.
- W1997727562 cites W2327039147 @default.
- W1997727562 cites W2388565233 @default.
- W1997727562 doi "https://doi.org/10.1111/j.1440-1738.1994.tb00117.x" @default.
- W1997727562 hasPublicationYear "1994" @default.
- W1997727562 type Work @default.
- W1997727562 sameAs 1997727562 @default.
- W1997727562 citedByCount "28" @default.
- W1997727562 countsByYear W19977275622013 @default.
- W1997727562 countsByYear W19977275622014 @default.
- W1997727562 countsByYear W19977275622015 @default.
- W1997727562 countsByYear W19977275622016 @default.
- W1997727562 countsByYear W19977275622018 @default.
- W1997727562 countsByYear W19977275622019 @default.
- W1997727562 countsByYear W19977275622020 @default.
- W1997727562 countsByYear W19977275622021 @default.
- W1997727562 crossrefType "journal-article" @default.
- W1997727562 hasAuthorship W1997727562A5018576754 @default.
- W1997727562 hasAuthorship W1997727562A5042407220 @default.
- W1997727562 hasAuthorship W1997727562A5064600616 @default.
- W1997727562 hasConcept C104317684 @default.
- W1997727562 hasConcept C109007969 @default.
- W1997727562 hasConcept C127313418 @default.
- W1997727562 hasConcept C151730666 @default.
- W1997727562 hasConcept C157369684 @default.
- W1997727562 hasConcept C2779300802 @default.
- W1997727562 hasConcept C2779421809 @default.
- W1997727562 hasConcept C2780247652 @default.
- W1997727562 hasConcept C50929876 @default.
- W1997727562 hasConcept C55493867 @default.
- W1997727562 hasConcept C86803240 @default.
- W1997727562 hasConcept C90856448 @default.
- W1997727562 hasConceptScore W1997727562C104317684 @default.
- W1997727562 hasConceptScore W1997727562C109007969 @default.
- W1997727562 hasConceptScore W1997727562C127313418 @default.
- W1997727562 hasConceptScore W1997727562C151730666 @default.
- W1997727562 hasConceptScore W1997727562C157369684 @default.
- W1997727562 hasConceptScore W1997727562C2779300802 @default.
- W1997727562 hasConceptScore W1997727562C2779421809 @default.
- W1997727562 hasConceptScore W1997727562C2780247652 @default.
- W1997727562 hasConceptScore W1997727562C50929876 @default.
- W1997727562 hasConceptScore W1997727562C55493867 @default.
- W1997727562 hasConceptScore W1997727562C86803240 @default.
- W1997727562 hasConceptScore W1997727562C90856448 @default.
- W1997727562 hasIssue "4" @default.
- W1997727562 hasLocation W19977275621 @default.
- W1997727562 hasOpenAccess W1997727562 @default.
- W1997727562 hasPrimaryLocation W19977275621 @default.
- W1997727562 hasRelatedWork W133573964 @default.
- W1997727562 hasRelatedWork W2155127089 @default.
- W1997727562 hasRelatedWork W2167582442 @default.
- W1997727562 hasRelatedWork W2324658518 @default.
- W1997727562 hasRelatedWork W2414660303 @default.
- W1997727562 hasRelatedWork W2460354739 @default.
- W1997727562 hasRelatedWork W2533098802 @default.
- W1997727562 hasRelatedWork W2586804523 @default.
- W1997727562 hasRelatedWork W2729161619 @default.
- W1997727562 hasRelatedWork W4304762364 @default.
- W1997727562 hasVolume "3" @default.
- W1997727562 isParatext "false" @default.
- W1997727562 isRetracted "false" @default.
- W1997727562 magId "1997727562" @default.
- W1997727562 workType "article" @default.