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BETA TEST - Fossil data and pages are very much experimental and under development. Please report any problems

Acrophoca longirostris

Description

Acrophoca longirostris, sometimes called the swan-necked seal, is an extinct genus of Late Miocene pinniped. It was thought to have been the ancestor of the modern leopard seal, however it is now thought to be a species of monk seal.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)4941668https://www.gbif.org/species/4941668
PaleoBioDB ID (PBDB)72219https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=72219
Rankspecies
Taxonomy (GBIF)Life : Animalia : Chordata : Mammalia : Carnivora : Phocidae : Acrophoca : Acrophoca longirostris
Taxonomy (PBDB)Life : Animalia : Chordata : Mammalia : Carnivora : Phocidae : Acrophoca : Acrophoca longirostris
Taxonomic Status (GBIF)doubtful
Classification
(PBDB,GBIF)
RankNameAuthor
-Eukaryota
-OpisthokontaCavalier-Smith 1987
kingdomAnimalia
-TriploblasticaLankester 1877
-NephrozoaJondelius et al. 2002
-DeuterostomiaGrobben 1908
phylumChordataHaeckel 1847
subphylumVertebrataLamarck 1801
superclassGnathostomataGegenbauer 1874
-Osteichthyes
-SarcopterygiiRomer 1955
subclassDipnotetrapodomorpha
subclassTetrapodomorpha
-Tetrapoda
-ReptiliomorphaSäve-Söderbergh 1934
-AnthracosauriaSäve-Söderbergh 1934
-Batrachosauria
-Cotylosauria
-AmniotaHaeckel 1866
-SynapsidaOsborn 1903
-Therapsida
infraorderCynodontia
-EpicynodontiaHopson and Kitching 2001
infraorderEucynodontiaKemp 1982
-ProbainognathiaHopson 1990
-MammaliamorphaRowe 1988
-MammaliaformesRowe 1988
classMammaliaLinnaeus 1758
subclassTribosphenida
infraclassEutheria
-PlacentaliaOwen 1837
-LaurasiatheriaWaddell et al. 1999
-ScrotiferaWaddell et al. 1999
-FeraeLinnaeus 1758
-CarnivoramorphaWyss and Flynn 1993
-CarnivoraformesFlynn et al.
orderCarnivoraBowditch 1821
superfamilyArctoideaFlower 1869
-PinnipedimorphaBerta et al. 1989
-Pinnipedia
familyPhocidaeGray 1821
subfamilyMonachinaeTrouessart 1897
genusAcrophocaMuizon 1981
speciesAcrophoca longirostrisde Muizon 1981
Generic NameAcrophoca
Scientific NameAcrophoca longirostris de Muizon, 1981
Name Published Inde Muizon, Christian. 1981. Les vertébrés fossiles de la Formation Pisco (Pérou) Deux nouveaux Monachinae (Phocidae, Mammalia) du Pliocene de Sud-Sacaco. Institut Français d'Études Andines, La Chapelle-Montligeon. Vol. 22: 161.
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Acrophoca longirostrisspeciesbelongs to Acrophocastated without evidenceMuizon, 1981
Status (PBDB)extinct
Taxon Size (PBDB)1
First Recorded Appearance11.6 - 7.2 Ma
Miocene
Last Recorded Appearance7.25 - 5.33 Ma
Miocene
Environmentmarine (based on Pinnipedia)
Motilityactively mobile (based on Osteichthyes)
Dietpiscivore, carnivore (based on Phocidae)
Reproductionviviparous (based on Pinnipedimorpha)
Ontogenymodification of parts (based on Pinnipedimorpha)
Taphonomyhydroxylapatite (based on Pinnipedimorpha)
Primary Reference (PBDB)C. Muizon. 1981. Les vertebres fossiles de la Formation Pisco (Perou). Premiere parti: Deux nouveaux Monachina (Phocidae, Mammalia) du Pliocene de Sud-Sacaco. Recherche sur les grandes civilisations Memoire 6:1-150
Wikipediahttps://en.wikipedia.org/wiki/Acrophoca_longirostris

Fossil Distribution

Synonymy List

YearName and Author
1981Acrophoca longirostris Muizon p. 81 figs. Fig. 27-30; Plate 7, fig. 1-3
1990Acrophoca longirostris Pilleri p. 240
2001Acrophoca longirostris Koretsky p. 87
2003Acrophoca longirostris Deméré et al. p. 49 figs. Fig. 3.3
2015Acrophoca longirostris Berta et al. p. 3 figs. Table 1
2018Acrophoca longirostris Berta et al. p. 210 figs. Fig. 4
2019Acrophoca longirostris Kienle and Berta

References

Muizon C. (1981) Les vertebres fossiles de la Formation Pisco (Perou). Premiere parti: Deux nouveaux Monachina (Phocidae, Mammalia) du Pliocene de Sud-Sacaco, Recherche sur les grandes civilisations Memoire 6, 1-150
Pilleri G. (1990) Zweiter fund von Arctocephalus lomasiensis und Acrophoca longirostris (Pinnipedia) in der Pisco Formation Perus, Beiträge zur Paläontologie der Cetaceen und Pinnipedier der Pisco Formation Perus II, 237-240
Koretsky I. (2001) Morphology and systematics of Miocene Phocinae (Mammalia: Carnivora) from Paratethys and the North Atlantic region, Geologica Hungarica Series Palaeontologica 54, 1-109
Deméré T. A., Berta A., et al (2003) Pinnipedimorph evolutionary biogeography, Bulletin of the American Museum of Natural History 279, 32-76
Berta A., Kienle S., et al (2015) A reevaluation of Pliophoca etrusca (Pinnipedia, Phocidae) from the Pliocene of Italy: phylogenetic and biogeographic implications, Journal of Vertebrate Paleontology, e889144 doi:10.1080/02724634.2014.889144
Berta A., Churchill M., et al (2018) The Origin and Evolutionary Biology of Pinnipeds: Seals, Sea Lions, and Walruses, Annual Review of Earth and Planetary Sciences 46, 203-228 doi:10.1146/annurev-earth-082517-010009
Kienle S. S., Berta A. (2019) The evolution of feeding strategies in phocid seals (Pinnipedia, Phocidae), Journal of Vertebrate Paleontology, e1559172
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
 
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