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Alphadontidae

Mammalia - Alphadontidae

Taxonomy
Alphadontidae was named by Marshall et al. (1990). It is not extant.

It was reranked as the subfamily Alphadontinae by Johanson (1995).

It was assigned to Peradectidae by Johanson (1995); to Didelphimorphia by Kielan-Jaworowska et al. (2004), Davis (2007); and to Marsupialiformes by Wilson et al. (2016).

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
2016Alphadontidae Wilson et al.

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
RankNameAuthor
—Amniota
subclassSynapsida
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
subclassMetatheria()
—Marsupialiformes
familyAlphadontidaeMarshall et al. 1990
familyAlphadontidaeMarshall et al. 1990

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Fm. †Alphadontidae Marshall et al. 1990
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G. †Albertatherium Fox 1971
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†Albertatherium secundus Johanson 1995
G. †Alphadon Simpson 1927
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†Alphadon attaragos Lillegraven and McKenna 1986
†Alphadon eatoni Cifelli and de Muizon 1998
†Alphadon halleyi Sahni 1972
†Alphadon marshi Simpson 1927
†Alphadon perexiguus Cifelli 1994
†Alphadon sahnii Lillegraven and McKenna 1986
†Alphadon wilsoni Lillegraven 1969
G. †Eoalphadon Eaton 2009
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†Eoalphadon clemensi Eaton 1993
†Eoalphadon woodburnei Eaton 2009
G. †Turgidodon Cifelli 1990
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†Turgidodon lillegraveni Cifelli 1990
†Turgidodon madseni Cifelli 1990
†Turgidodon parapraesagus Rigby, Jr. and Wolberg 1987
†Turgidodon petiminis Storer 1991
†Turgidodon praesagus Russell 1952
†Turgidodon rhaister Clemens 1966
†Turgidodon russelli Fox 1979
G. †Varalphadon Johanson 1996
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†Varalphadon creber Fox 1971
†Varalphadon crebreforme Cifelli 1990
†Varalphadon janetae Carneiro 2018
†Varalphadon wahweapensis Cifelli 1990
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialc
Locomotion: actively mobilec
Life habit: scansorialsubc
Diet: omnivoresubc
Reproduction: viviparoussubc
Created: 2011-04-28 11:05:11
Modified: 2011-04-27 20:05:35
Source: subc = subclass, c = class, subp = subphylum
References: Lillegraven 1979, Carroll 1988, Clemens 1979, Hendy et al. 2009, Hopson 1973

Age range: base of the Middle Cenomanian to the top of the Ypresian or 99.60000 to 47.80000 Ma

Collections (140 total)


Time interval Ma Country or state Original ID and collection number
Cenomanian100.5 - 93.9USA (Utah) Alphadon clemensi (14384)
Middle Cenomanian - Late/Upper Cenomanian99.6 - 93.5USA (Utah) Alphadon lillegraveni, Alphadon sp. (14383) Alphadon sp., Alphadon clemensi, Alphadon lillegraveni, Alphadontidae indet., Varalphadon janetae (14385) Eoalphadon sp., Eoalphadon woodburnei (73433) Eoalphadon woodburnei (73432)
Coniacian - Santonian89.8 - 83.6USA (Utah) Alphadon sp. (14393)
Santonian86.3 - 83.6USA (Montana) Albertatherium sp., Varalphadon sp., Albertatherium primus, Alphadon halleyi, Varalphadon wahweapensis (181582) Varalphadon sp. (181583)
Late/Upper Santonian85.8 - 83.5Canada (Alberta) Albertatherium primus, Albertatherium secundus (108197) Albertatherium primus, Alphadon creber (14423) Albertatherium primus, Alphadon creber, Alphadon sp. (14425) Alphadon creber (14426)
Late/Upper Santonian - Early/Lower Campanian85.8 - 70.6USA (Utah) Alphadon sp. (230871)
Early/Lower Campanian83.5 - 70.6USA (Utah) Alphadon attaragos, Alphadon clemensi, Alphadontidae indet., Alphadon sahnii (14430) Anchistodelphys archibaldi (75851) Protalphadon crebreforme (75839 75840) Turgidodon sp., Alphadon clemensi, Alphadon sp. B, Alphadon sp. A (14421)
Judithian83.5 - 70.6USA (Texas) Alphadon halleyi, Alphadon perexiguus, Turgidodon sp. (14489) Alphadon sp., Alphadon halleyi (14488)
Judithian83.5 - 70.6USA (Wyoming) Alphadon attaragos, Alphadon halleyi, Alphadon russelli (14487) Alphadon halleyi, Alphadon russelli (14433 14458 14465) Alphadon russelli (14486) Alphadon sahnii (14439 14440 14479 14480)
Judithian83.5 - 70.6Canada (Alberta) Alphadon halleyi, Turgidodon praesagus, Turgidodon russelli (14451) Alphadon praesagus (14476) Alphadon russelli (14463) Delphodon praesagus (14485)
Judithian83.5 - 70.6USA (New Mexico) Alphadon sp., Alphadon wilsoni (14464)
Judithian83.5 - 70.6USA (Utah) Alphadon attaragos, Alphadon sp. (14467) Turgidodon sp. (75838) Turgidodon sp., Alphadon attaragos, Alphadon wilsoni, Alphadon russelli (14474 14475)
Late/Upper Campanian83.5 - 70.6Mexico (Coahuila) Turgidodon russelli (154244)
Late/Upper Campanian83.5 - 70.6USA (New Mexico) Alphadon marshi (36542) Alphadon sp. (54101 56622 56627) Alphadon sp., Alphadon marshi (14498) Alphadon sp., Alphadon wilsoni (14436)
Late/Upper Campanian83.5 - 70.6USA (Utah) Alphadon halleyi, Alphadon sahnii, Protalphadon wahweapensis, Turgidodon lillegraveni, Turgidodon madseni, Alphadon sp. (14466) Alphadon halleyi, Protalphadon wahweapensis, Turgidodon lillegraveni, Turgidodon madseni (75836)
Late/Upper Campanian83.5 - 70.6USA (Wyoming) Alphadon russelli (70454) Alphadon russelli, Alphadon sahnii (70269 70453)
Late/Upper Campanian83.5 - 70.6Canada (Alberta) Turgidodon praesagus (45893) Turgidodon russelli (45671 45822 45899)
Middle Campanian83.5 - 70.6Canada (Alberta) Alphadon praesagus (189514) Turgidodon praesagus (45564 45567) Turgidodon praesagus, Turgidodon russelli (45670) Turgidodon russelli (45561 45566)
Middle Campanian83.5 - 70.6USA (Montana) Alphadon halleyi (14453) Alphadon halleyi, Alphadon praesagus, Alphadon russelli (14482)
Middle Campanian83.5 - 70.6USA (Utah) Alphadon sp. (61844)
Middle Campanian - Late/Upper Campanian83.5 - 70.6USA (Montana) Alphadon attaragos, Alphadon halleyi, Alphadon praesagus, Turgidodon russelli (14446) Alphadon halleyi (14450 14459 14468) Alphadon halleyi, Alphadon praesagus, Alphadon russelli, Alphadon attaragos (14470) Alphadon halleyi, Alphadon rhaister (69161) Alphadon halleyi, Alphadon russelli (14491) Alphadon russelli (14449) Alphadon sp. (14490) Alphadon sp., Alphadon halleyi, Alphadon russelli (14461)
Middle Campanian - Late/Upper Campanian83.5 - 70.6Canada (Saskatchewan) Alphadon halleyi (14494)
Middle Campanian - Late/Upper Campanian83.5 - 70.6USA (Texas) Alphadon halleyi (68001) Alphadon sp. (68003 68006 212186)
Maastrichtian72.1 - 66.0Portugal (Coimbra) Alphadon sp. (49276)
Early/Lower Maastrichtian70.6 - 66.0Canada (Alberta) Alphadon rhaister (14502)
Edmontonian70.6 - 66.0USA (New Mexico) Alphadon halleyi, Alphadon wilsoni, Alphadon parapraesagus (14496)
Edmontonian70.6 - 66.0USA (Montana) Turgidodon parapraesagus (14503) Turgidodon russelli (96603)
Lancian70.6 - 66.0Canada (Alberta) Alphadon marshi (14632) Alphadon marshi, Alphadon rhaister, Alphadon wilsoni (14630) Alphadon rhaister, Alphadon marshi (14634) Alphadon wilsoni (14631)
Lancian70.6 - 66.0USA (Utah) Alphadon eatoni (14603) Alphadon sp. (14599)
Lancian70.6 - 66.0USA (New Mexico) Alphadon marshi (14573 14619)
Lancian70.6 - 66.0USA (North Dakota) Alphadon sp. (14621)
Lancian70.6 - 66.0USA (South Dakota) Alphadon marshi (14604 14612)
Lancian70.6 - 66.0Canada (Saskatchewan) Alphadon sp. (14655) Turgidodon petiminis (14558)
Lancian70.6 - 66.0USA (Montana) Alphadon marshi (14516 14533 14535 14536 14546 14548 14616 14639 172642) Alphadon marshi, Alphadon rhaister (14549 14582) Alphadon marshi, Alphadon wilsoni, Alphadon rhaister, Alphadon sp. (14624) Alphadon marshi, Alphadon wilsoni, Turgidodon rhaister (172644) Alphadon rhaister (14531 14648) Alphadon sp. (14508 14556 14562 14647 14650) Alphadon sp., Alphadon rhaister (14583) Alphadon wilsoni (14617) Alphadon wilsoni, Alphadon rhaister (14618) Alphadon wilsoni, Alphadon sp. (14649) Turgidodon rhaister (14597)
Lancian70.6 - 66.0USA (Wyoming) Alphadon marshi (14526 14538 14596 14598) Alphadon marshi, Alphadon rhaister (14519 14566) Alphadon marshi, Alphadontidae indet. (14514) Alphadon rhaister (14565)
Late/Upper Maastrichtian70.6 - 66.0USA (Montana) Alphadon sp. (55326) Turgidodon rhaister (183109)
Late/Upper Maastrichtian70.6 - 66.0Canada (Saskatchewan) Alphadon sp. (54105)
Late/Upper Maastrichtian70.6 - 66.0USA (Wyoming) Alphadon marshi, Alphadon rhaister (14585)
Late/Upper Maastrichtian70.6 - 66.0USA (North Dakota) Alphadon marshi (45099) Alphadon sp. (45137)
Late/Upper Maastrichtian70.6 - 66.0USA (New Mexico) Alphadon marshi (154429 154616) Alphadontidae indet. (59068)
Puercan66.0 - 63.3USA (Montana) Alphadontidae indet. (14801)
Ypresian56.0 - 47.8Algeria Alphadon sp. (71984)