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Placentalia (placental)

Mammalia -

Taxonomy
Placentalia was named by Owen (1837). It is extant.

It was synonymized subjectively with Eutheria by Gadow (1898); it was reranked as the order Placentalia by Olson (1966).

It was assigned to Mammalia by Owen (1837), Bonaparte (1850), Olson (1966) and Seiffert and Simons (2000); to Theria by McKenna and Bell (1997) and Shoshani and Tassy (2005); to Eutheria by Horovitz (2003), Averianov and Archibald (2005), Wible et al. (2007) and Asher and Helgen (2010); and to Eutheria by Luo et al. (2011).

Sister taxa
Afrotheria (syn. Afroplacentalia), Americatheria, Atlantogenata (syn. Xenafrotheria, Notoplacentalia), Boreoeutheria (syn. Boreotheria, Boreoplacentalia), Educabilia, Epitheria, Euarchontoglires (syn. Archontoglires, Supraprimates), Exafroplacentalia, Ineducabilia, Laurasiatheria (syn. Laurasiaplacentalia), Mutilata, Ungulatomorpha

View classification of included taxa

Synonyms
Synonymy list
YearName and author
1837Placentalia Owen p. 903
1850Placentalia Bonaparte p. 1
1872Monodelphia Gill p. 45
1889Monodelphia Cope p. 874
1902Monodelphia Hay p. 571
1930Monodelphia Hay p. 396
1937Monodelphia Thorpe p. 31
1966Placentalia Olson p. 302
1996Ungulatomorpha Archibald
1997Ungulatomorpha Averianov p. 249
1997Placentalia McKenna and Bell p. 80
1998Ungulatomorpha Archibald
1998Ungulatomorpha Nessov et al. p. 45
1999Atlantogenata Waddell et al. p. cover
2000Placentalia Seiffert and Simons p. 2646
2003Placentalia Horovitz
2004Ungulatomorpha Kielan-Jaworowska et al. pp. 494, 509
2005Placentalia Averianov and Archibald p. 595
2005Placentalia Shoshani and Tassy p. 9 figs. Table 2
2007Placentalia Wible et al.
2010Atlantogenata Asher and Helgen p. 3 figs. Figure 1
2010Placentalia Asher and Helgen p. 3 figs. Figure 1
2011Placentalia Luo et al. p. 444

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
RankNameAuthor
Cotylosauria()
Amniota
Synapsida()
Therapsida()
infraorderCynodontia()
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
subclassTribosphenida()
infraclassEutheria()
Placentalia
Placentalia

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.

Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Maximum body mass: 1000 kgg
Minimum body mass: 3 gg
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: scansorialsubc
Diet: insectivoreuc
Created: 2005-09-06 20:43:42
Modified: 2005-09-06 22:44:32
Source: g = genus, subc = subclass, c = class, subp = subphylum, uc = unranked clade
References: Luo et al. 2003, Benton 1996, Vizcaíno et al. 2010, Carroll 1988, Walton 1997, Hendy et al. 2009, Ji et al. 2002, Legendre 1988

Age range

Maximum range based only on fossils: base of the Late/Upper Barremian to the top of the Holocene or 130.00000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 113.0 Ma

Collections (13742 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Late/Upper Barremian - Aptian130.0 - 113.0Russian Federation (Buryat) Prokennalestes abramovi, Kennalestoidea indet. (58196)
Early/Lower Cenomanian99.6 - 93.5Uzbekistan (Navoi) Bobolestes zenge (58208) Otlestes meiman (64684)
Middle Turonian - Late/Upper Turonian93.5 - 89.3Uzbekistan (Navoi) Cretasorex arkhangelskyi, Deltatheriidae indet. (58179)
Early/Lower Campanian83.5 - 70.6Kazakhstan (Ongtüstik Qazaqstan) Otlestidae indet. (59730)
Judithian83.5 - 70.6Canada (Alberta) Nyctitheriidae indet. (14451)
Late/Upper Campanian - Early/Lower Maastrichtian83.5 - 66.0Brazil (São Paulo) Placentalia indet. (57000)
Maastrichtian72.1 - 66.0Portugal (Coimbra) Leptacodon sp., Palaeoryctidae indet. (49276)
Maastrichtian72.1 - 66.0India (Madhya Pradesh) Deccanolestes sp., Otlestidae indet., Deccanolestes narmadensis (75493)
Maastrichtian72.1 - 66.0India (Andhra Pradesh) Deccanolestes hislopi, Deccanolestes robustus, Deccanolestes hislopi (27014) Deccanolestes sp., Deccanolestes robustus, Deccanolestes hislopi (122240)
Maastrichtian72.1 - 66.0USA (North Dakota) Cimolestes magnus (45144)
Lancian70.6 - 66.0USA (Wyoming) Cimolestes magnus (14519 14598)
Lancian70.6 - 66.0Canada (Alberta) Cimolestes magnus (14630 14633 14635 14637)
Lancian70.6 - 66.0USA (Montana) Cimolestes magnus (14516 14532)
Lancian70.6 - 66.0Canada (Saskatchewan) Cimolestes magnus (14558)
Puercan66.0 - 63.3USA (Texas) Bryanictis sp. (14829) Protictis sp. (14887)
Puercan66.0 - 63.3USA (New Mexico) Erinaceomorpha indet. (14760 14794)
Puercan66.0 - 63.3USA (Utah) Haplaletes andakupensis (14790)
Puercan66.0 - 63.3Canada (Saskatchewan) Carnivora indet., Litomylus orthronepius, Ravenictis krausei (14768)
Puercan66.0 - 63.3USA (Montana) Haplaletes andakupensis, Leptacodon proserpinae (14766) Litomylus orthronepius (14809)
Early/Lower Paleocene66.0 - 61.7China (Anhui) Anictops tabiepedis (179329 179330 179331 179338 179339 179341) Anictops tabiepedis, Paranictops majuscula (179342) Anictops wanghudunensis (179332 179333) Astigale wanensis (133371) Cartictops canina (132955 176615) Decoredon elongetus, Huaiyangale chianshanensis, Diacronus anhuiensis, Anictops tabiepedis (132946) Harpyodus euros, Anictops tabiepedis (132954) Heomys sp., Paranictops majuscula (132940) Huaiyangale sp., Huaiyangale chianshanensis, Anictops tabiepedis (179327) Mimotona wana, Diacronus wanghuensis, Anictops tabiepedis (132941) Pappictidops orientalis, Anictops tabiepedis (146556) Pappictidops orientalis, Anictops tabiepedis, Mimotona sp. (132943) Paranictops majuscula (179334) Paranictops sp. (179340) Wania chowi (139607) Wanogale hodungensis, Anaptogale wanghoensis, Chianshania gianghuaiensis, Anictops tabiepedis (132953)