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Alphadontidae ✝

Description

Alphadontidae was a family of small, primitive mammal that was a member of the metatherians, a group of mammals that includes modern-day marsupials.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)4975108https://www.gbif.org/species/4975108
PaleoBioDB ID (PBDB)67663https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=67663
Rankfamily
Taxonomy (GBIF,PBDB)Life : Animalia : Chordata : Mammalia : Didelphimorphia : Alphadontidae
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
-Theriamorpha
-Theriiformes
-TrechnotheriaMcKenna 1975
-CladotheriaMcKenna 1975
-Boreosphenida
subclassTheriaParker and Haswell 1897
subclassMetatheria
-Marsupialia
orderDidelphimorphiaGill 1872
familyAlphadontidaeMarshall et al. 1990
Scientific NameAlphadontidae
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Alphadontidaesubfamilybelongs to Peradectidaestated with evidenceJohanson, 1995
Alphadontidaefamilybelongs to Didelphimorphiastated without evidenceKielan-Jaworowska et al., 2004
Alphadontidaefamilybelongs to Didelphimorphiastated with evidenceDavis, 2007
Status (PBDB)extinct
Taxon Size (PBDB)24
First Recorded Appearance101 - 94 Ma
Late/Upper Cretaceous
Last Recorded Appearance56.0 - 47.8 Ma
Eocene
Environmentterrestrial (based on Mammalia)
Motilityactively mobile (based on Osteichthyes)
Dietomnivore (based on Marsupialia)
Reproductionviviparous (based on Theria)
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)Z. Kielan-Jaworowska, R. L. Cifelli, and Z.-X. Luo. 2004. Mammals from the age of dinosaurs: Origins, evolution, and structure. Columbia University Press, New York
Wikipediahttps://en.wikipedia.org/wiki/Alphadontidae

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Albertatherium
genus
accepted (GBIF)
listed (PBDB)
686.3 Ma
Late/Upper Cretaceous
85.8 Ma
Late/Upper Cretaceous
Alphadon
genus
accepted (GBIF)
listed (PBDB)
109101 Ma
Late/Upper Cretaceous
56.0 Ma
Paleocene
Eoalphadon
genus
accepted (GBIF)
listed (PBDB)
10101 Ma
Late/Upper Cretaceous
83.5 Ma
Late/Upper Cretaceous
Turgidodon
genus
accepted (GBIF)
listed (PBDB)
6583.6 Ma
Late/Upper Cretaceous
70.6 Ma
Late/Upper Cretaceous

Synonymy List

YearName and Author
1990Alphadontidae Marshall et al.
1995Alphadontinae Johanson p. 601
2004Alphadontidae Kielan-Jaworowska et al. pp. 443, 453
2007Alphadontidae Davis p. 218

References

Kielan-Jaworowska Z., Cifelli R. L., et al (2004) Mammals from the age of dinosaurs: Origins, evolution, and structure, Columbia University Press, New York, 1-630
Johanson Z. (1995) New Information Concerning the Late Cretaceous Marsupial Albertatherium Fox, 1971, Journal of Vertebrate Paleontology 14 4, 595-602
Davis B. M. (2007) A revision of “pediomyid” marsupials from the Late Cretaceous of North America, Acta Palaeontologica Polonica 52 2, 217-256
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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