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Antarctodon

Description

Antarctodon is an extinct genus of meridiungulatan mammals from the Early Eocene (late Ypresian age). It is a basal astrapotherian which lived in what is now Seymour Island, Antarctic Peninsula, at that moment still connected to South America where most of the astrapotherians were found. The holotype and only specimen MLP 08-XI-30-1, an isolated right p4 or m1, was found in the Telm 5 Member of the La Meseta Formation in West Antarctica. It was first named by Mariano Bond, Alejandro Kramarz, Ross D. E. MacPhee and Marcelo Reguero in 2011 and the type species is Antarctodon sobrali.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)8688522https://www.gbif.org/species/8688522
PaleoBioDB ID (PBDB)335276https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=335276
Rankgenus
Taxonomy (GBIF)Life : Animalia : Chordata : Mammalia : Antarctodon
Taxonomy (PBDB)Life : Animalia : Chordata : Mammalia : Astrapotheria : Antarctodon
Taxonomic Status (GBIF)accepted
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
orderUngulata
-MeridiungulataMcKenna 1975
orderAstrapotheriaLydekker 1894
genusAntarctodonBond Kramarz MacPhee & Reguero 2011
Scientific NameAntarctodon Bond, Kramarz, MacPhee & Reguero, 2011
Name Published InAmerican Museum Novitates 3718.
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Antarctodongenusbelongs to Astrapotheriastated without evidenceBond et al., 2011
Status (PBDB)extinct
Taxon Size (PBDB)2
First Recorded Appearance56.0 - 47.8 Ma
Eocene
Last Recorded Appearance47.8 - 38.0 Ma
Eocene
Environmentterrestrial (based on Eutheria)
Motilityactively mobile (based on Osteichthyes)
Dietherbivore (based on Astrapotheria)
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)M. Bond, A. Kramarz, and R. D. E. MacPhee, M. Reguero. 2011. A new astrapothere (Mammalia, Meridiungulata) from La Meseta Formation, Seymour (Marambio) Island, and a reassessment of previous records of antarctic astrapotheres. American Museum Novitates 3718:1-16
Wikipediahttps://en.wikipedia.org/wiki/Antarctodon

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Antarctodon sobrali
species
accepted (GBIF)
listed (PBDB)
256.0 Ma
Paleocene
47.8 Ma
Eocene

Synonymy List

YearName and Author
2011Antarctodon Bond et al.

References

Bond M., Kramarz A., et al (2011) A new astrapothere (Mammalia, Meridiungulata) from La Meseta Formation, Seymour (Marambio) Island, and a reassessment of previous records of antarctic astrapotheres, American Museum Novitates 3718, 1-16 doi:10.1206/3718.2
inferred from original work (title) - via The Interim Register of Marine and Nonmarine Genera
refer original publication - via The Interim Register of Marine and Nonmarine Genera
www.organismnames.com (Jul 2012) / web search - via The Interim Register of Marine and Nonmarine Genera
Article title: A new astrapothere (Mammalia, Meridiungulata) from La Meseta Formation, Seymour (Marambio) Island, and a reassessment of previous records of Antarctic astrapotheres. - via The Interim Register of Marine and Nonmarine Genera
American Museum Novitates 3718. - via The Interim Register of Marine and Nonmarine Genera
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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