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Ameridelphia

Mammalia

Synonymy list
YearName and author
1982Ameridelphia Szalay
1994Ameridelphia Springer et al. p. 86
2001Ameridelphia de Muizon and Cifelli p. 88
2004Ameridelphia Case et al. p. 234
2004Ameridelphia Cifelli p. 285
2004Ameridelphia Kielan-Jaworowska et al. pp. 443, 449-450
2006Ameridelphia Munemasa et al. p. 188
2007Ameridelphia Davis p. 225
2011Ameridelphia Oliveira and Goin

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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
Marsupialia()
AmeridelphiaSzalay 1982
AmeridelphiaSzalay 1982

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.

Unr. †Ameridelphia Szalay 1982
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Fm. †Derorhynchidae Paula Couto 1962
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G. †Coona Simpson 1938
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Coona gaudryi Simpson 1964
Coona gutierrezi Del Corro 1977
Coona pattersoni Simpson 1948
G. †Derorhynchus Couto 1952
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Derorhynchus minutus Goin et al. 1999
Derorhynchus singularis Paula Couto 1952
G. †Diogenesia Oliveira et al. 2021
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Diogenesia brevirostris Oliveira et al. 2021
G. †Pauladelphys Goin et al. 1999
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Pauladelphys juanjoi Goin et al. 1999
G. †Xenostylos Goin 2007
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Xenostylos peninsularis Goin et al. 1999
Invalid names: Xenostylus Goin et al. 1999 [replaced]
Or. Didelphimorphia Gill 1872
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Unr. Didelphidae Gray 1821 [opossum]
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Subfm. Caluromyinae Kirsch and Reig 1977
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G. Caluromys Allen 1900 [woolly oppossum]
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Caluromys lanatus Olfers 1818
Caluromys philander Linnaeus 1758
G. Glironia Thomas 1912 [bushy-tailed opossum]
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Glironia venusta Thomas 1912
Invalid names: Caluromyinae Kirsch and Reig 1977 [invalid subgroup], Glironiinae Hershkovitz 1992 [invalid subgroup]
G. †Caroloameghiana Ameghino 1901
G. †Cladodidelphys Ameghino 1904
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Cladodidelphys crucialis Ameghino 1904
Cladodidelphys parvula Rovereto 1914
G. Cryptonanus Voss 2005
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Tr. Dasyurina Gray 1825
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G. Peracyon Gray 1825
Subfm. Didelphinae Gray 1827
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G. Chacodelphys Voss et al. 2004
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Chacodelphys formosa Voss et al. 2004
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Invalid names: Marmosa formosa Shamel 1930 [replaced]
Tr. Didelphini Crochet 1979
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G. Chironectes Illiger 1811 [water opossum]
G. †Hyperdidelphys Ameghino 1904
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Invalid names: Paradidelphys Ameghino 1904 [synonym]
G. Lutreolina Thomas 1910 [lutrine opossum]
G. Philander Brisson 1762 [four-eyed opossum]
G. †Thylophorops Reig 1952
G. Didelphis Linnaeus 1758 [large American opossum]
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Didelphis albiventris Lund 1840 [white-eared opossum]
Didelphis aurita Wied-Neuwied 1826 [Big-eared opossum]
Didelphis crucialis Ameghino 1904
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Invalid names: Hyperdidelphys brachyodonta Reig 1952 [synonym]
Didelphis marsupialis Linnaeus 1758 [common opossum]
Didelphis solimoensis Couzzol et al. 2006
Didelphis virginiana Kerr 1792 [Virginia opossum]
Didelphys abrupta Ameghino 1904
Didelphys biforata Ameghino 1904
Didelphys chapalmalensis Ameghino 1908
Didelphys grandaeva Ameghino 1889
Didelphys inexpectata Ameghino 1889
Didelphys juga Ameghino 1889
Didelphys lujanensis Ameghino 1889
Didelphys perplana Ameghino 1904
Didelphys tracheia Rovereto 1914
Didelphys triforata Ameghino 1889
Invalid names: Didelphis Linnaeus 1758 [synonym], Didelphis Linnaeus 1758 [synonym], Didelphis albiventris Lund 1840 [valid], Didelphis aurita Wied-Neuwied 1826 [valid], Didelphis crucialis Ameghino 1904 [valid], Didelphis marsupialis Linnaeus 1758 [valid], Didelphis solimoensis Couzzol et al. 2006 [valid], Didelphis virginiana Kerr 1792 [valid], Didelphys abrupta Ameghino 1904 [valid], Didelphys biforata Ameghino 1904 [valid], Didelphys chapalmalensis Ameghino 1908 [valid], Didelphys grandaeva Ameghino 1889 [valid], Didelphys inexpectata Ameghino 1889 [valid], Didelphys juga Ameghino 1889 [valid], Didelphys lujanensis Ameghino 1889 [valid], Didelphys perplana Ameghino 1904 [valid], Didelphys tracheia Rovereto 1914 [valid], Didelphys triforata Ameghino 1889 [valid]
G. Hyladelphys Voss et al. 2001
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Hyladelphys kalinowskii Hershkovitz 1992
Tr. Metachirini Reig et al. 1987
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G. Metachirus Burmeister 1854 [brown four-eyed opposum]
G. †Mirandaia Paula Couto 1952
Invalid names: Didelphina Gray 1825 [synonym]
G. †Dimerodon Ameghino 1889
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Dimerodon mutiatus Ameghino 1889
Subfm. †Eobrasiliinae Marshall 1987
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G. †Tiulordia Marshall and de Muizon 1988
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Tiulordia floresi Marshall and de Muizon 1988
Subfm. †Hyladelphinae Voss and Jansa 2009
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G. †Sairadelphys Oliveira et al. 2011
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Sairadelphys tocantinensis Oliveira et al. 2011
Subfm. Marmosinae Reig et al. 1987
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Tr. Marmosini Reig et al. 1987
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G. Marmosa Gray 1821 [mouse opossum]
G. Micoureus Lesson 1842 [woolly mouse opossum]
G. Thylamys Gray 1843 [fat-tailed mouse opossum]
G. Tlacuatzin Voss and Jansa 2003
G. †Zygolestes Ameghino 1898
Tr. Monodelphini Hershkovitz 1992
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G. Monodelphis Burnett 1830 [short-tailed opossum]
G. †Thylatheridium Reig 1952
G. Marmosops Matschie 1916 [slender opossum]
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Marmosops impavidus Tschudi 1844
Marmosops noctivagus Tschudi 1844
Unr. Sparassocynini Reig 1958
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G. †Hesperocynus Forasiepi et al. 2009
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G. †Sparassocynus Mercerat 1898
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Sparassocynus bahiai Mercerat 1898
Sparassocynus derivatus Reig and Simpson 1972
Sparassocynus maimarai Abello et al. 2015
Subfm. Thlaeodontinae Cope 1892
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G. †Thlaeodon Cope 1892
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Thlaeodon padanicus Cope 1892
Subfm. Thylamyinae Hershkovitz 1992
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Tr. Thylamyini Hershkovitz 1992
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G. Lestodelphys Tate 1934 [Patagonian opussum]
Invalid names: Derorhynchinae Marshall 1987 [empty], Herpetotheriinae Troussart 1879 [empty], Marmosopsini Kirsch and Palma 1995 [invalid subgroup], Sparassocyninae Reig 1958 [empty]
Invalid names: Pedimanes Gray 1821 [invalid subgroup], Peradectia Marshall et al. 1990 [synonym], Peradectoidea Marshall et al. 1990 [empty], Sparassocynidae Reig 1958 [empty]
G. †Marambiotherium Goin et al. 1999
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Marambiotherium glacialis Goin et al. 1999
Fm. †Protodidelphidae Marshall 1987
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G. †Bergqvistherium Carneiro 2018
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Bergqvistherium primigenia Carneiro 2018
G. †Carolocoutoia Goin et al. 1998
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Carolocoutoia ferigoloi Goin et al. 1998
G. †Guggenheimia Paula Couto 1952
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Guggenheimia brasiliensis Paula Couto 1952
Guggenheimia crocheti Oliveira and Goin 2011
Guggenheimia glykeia Chornogubsky et al. 2023
G. †Periprotodidelphis Oliveira and Goin 2011
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Periprotodidelphis bergqvistae Oliveira and Goin 2011
G. †Protodidelphis Paula Couto 1952
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Protodidelphis vanzolinii Paula Couto 1952
Fm. †Sternbergiidae Szalay 1994
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G. †Carolopaulacoutoia McKenna and Bell 1997
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Invalid names: Sternbergia Paula Couto 1970 [synonym]
G. †Didelphopsis Paula Couto 1952
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Didelphopsis cabrerai Paula Couto 1952
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Maximum body mass: 315.922 gs
Minimum body mass: 270.216 gs
Environment: terrestrialc
Locomotion: actively mobilec
Life habit: scansorialf
Diet: omnivoref
Reproduction: viviparoussubc
Created: 2005-09-07 09:16:13
Modified: 2011-04-27 20:22:07
Source: s = species, f = family, subc = subclass, c = class, subp = subphylum
References: Hopson 1973, Carroll 1988, Lillegraven 1979, Dozo 1989, Hendy et al. 2009, Clemens 1979

Age range

Maximum range based only on fossils: base of the Middle Campanian to the top of the Holocene or 83.50000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 70.6 Ma

Collections (260 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Middle Campanian - Late/Upper Campanian83.5 - 70.6USA (Montana) Didelphidae indet. (14492)
Late/Upper Maastrichtian70.6 - 66.0USA (Montana) Thlaeodon sp. (119007)
Puercan66.0 - 63.3USA (Montana) Didelphidae indet. (14809)
Puercan66.0 - 63.3Canada (Saskatchewan) Didelphidae indet. (14737)
Danian66.0 - 61.6Bolivia (Mizque) Tiulordia floresi (13501)
Danian66.0 - 61.6Argentina (Chubut) Didelphopsis sp., Derorhynchus minutus (95914)
Tiffanian61.7 - 56.8USA (Wyoming) Peratherium sp. (15049)
Thanetian - Ypresian59.2 - 47.8Peru (Puno) Didelphidae indet., Didelphimorphia indet., Peradectia indet. (28230) Didelphidae sp. 1, Didelphidae sp. 2, Didelphidae sp. 3, Didelphidae indet. (132938)
Casamayoran56.0 - 48.0Argentina (Chubut) Coona pattersoni, Microbiotherium gutierrezi (39295) Didelphidae indet. (175738)
Ypresian56.0 - 47.8Argentina (Chubut) Derorhynchus sp., Protodidelphis sp., Didelphimorphia gen. nov. 5, Carolopaulacoutoia sp., Derorhynchidae gen. nov. 1, Derorhynchidae gen. nov. 2, Didelphopsis sp., Guggenheimia crocheti (133040)
Ypresian56.0 - 47.8Antarctica (Seymour Island) Pauladelphys juanjoi (176085)
Ypresian56.0 - 47.8Antarctica Didelphimorphia indet., Derorhynchidae indet., Derorhynchus minutus, Pauladelphys juanjoi, Xenostylus peninsularis, Marambiotherium glacialis (100414)
Ypresian - Lutetian56.0 - 41.3Argentina (Chubut) Protodidelphis mastodontoides, Sternbergiidae indet., Guggenheimia glykeia (231392)
Eocene56.0 - 33.9Antarctica Derorhynchus minutus, Pauladelphys juanjoi, Xenostylus peninsularis, Marambiotherium glacialis (153447)
Wasatchian55.8 - 50.3USA (New Mexico) Peradectes sp. (15447)
Wasatchian55.8 - 50.3USA (Colorado) Peratherium sp. (15357)
Wasatchian55.8 - 50.3USA (California) Didelphidae indet. (15676)
Early/Lower Eocene55.8 - 48.6Brazil (Rio de Janeiro) Didelphidae indet., Protodidelphis vanzolinii, Didelphopsis cabrerai, Guggenheimia brasiliensis, Derorhynchus singularis, Robertbutleria mastodontoidea, Guggenheimia crocheti, Carolocoutoia ferigoloi, Periprotodidelphis bergqvistae, Carolopaulacoutoia itaboraiensis, Diogenesia brevirostris, Protodidelphidae indet. (118314)
Bridgerian50.3 - 46.2USA (Wyoming) Didelphidae indet. (16280) Herpetotherium sp. (16081) Peratherium sp. (16114 16118 16129 16130 16271 16315)
Bridgerian50.3 - 46.2USA (Colorado) Peratherium sp. (16251)