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Megatheriinae
Taxonomy
Megatheriinae was named by Gill (1872). It is not extant. Its type is Megatherium.
It was assigned to Mylodontidae by MacFadden et al. (1993); and to Megatheriidae by Hay (1930), Paula Couto (1956), Gaudin (1995), De Iuliis and Cartelle (1999), Zurita et al. (2004), Pujos (2006), Amson et al. (2017) and Varela et al. (2019).
It was assigned to Mylodontidae by MacFadden et al. (1993); and to Megatheriidae by Hay (1930), Paula Couto (1956), Gaudin (1995), De Iuliis and Cartelle (1999), Zurita et al. (2004), Pujos (2006), Amson et al. (2017) and Varela et al. (2019).
Subtaxa
Anisodontherium, Diabolotherium, Eremotherium (syn. Schaubitherium, Xenocnus, Schaubia), Megathericulus, Megatheridium, Megatheriops, Megatherium (syn. Oracanthus, Essonodontherium, Neoracanthus) (type genus), Plesiomegatherium, Pliomegatherium, Proeremotherium, Pyramiodontherium, Sibotherium, Urumaquia
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1872 | Megatheriinae Gill |
| 1930 | Megatheriinae Hay p. 404 |
| 1956 | Megatheriinae Paula Couto p. 99 |
| 1980 | Xenocninae Paula Couto |
| 1993 | Megatheriinae MacFadden et al. p. 235 |
| 1995 | Megatheriinae Gaudin |
| 1999 | Megatheriinae De Iuliis and Cartelle p. 500 |
| 2004 | Megatheriinae Zurita et al. |
| 2006 | Megatheriinae Pujos |
| 2017 | Megatheriinae Amson et al. p. 231 figs. Fig. 10 |
| 2019 | Megatheriinae Varela et al. |
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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.
Subfm. †Megatheriinae Gill 1872
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G. †Eremotherium Spillmann 1948
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†Eremotherium eomigrans De Iuliis and Cartelle 1999
†Eremotherium laurillardi Lund 1842
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Invalid names: Chelonia couperi Harlan 1842 [synonym], Eremotherium carolinense Spillmann 1948 [synonym], Eremotherium juanajuatense Duges 1882 [synonym], Megatherium hudsoni White 1941 [synonym], Xenocnus cearensis Paula Couto 1980 [synonym]
†Eremotherium rusconii Schaub 1935
†Eremotherium sefvei De Iuliis and Saint-Andre 1997
Invalid names: Schaubia Hoffstetter 1949 [synonym], Schaubitherium Hoffstetter 1950 [synonym], Xenocnus Paula Couto 1980 [synonym]
G. †Megathericulus Ameghino 1904
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†Megathericulus patagonicus Ameghino 1904
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Invalid names: Megathericulus primaevus Cabrera 1939 [synonym]
G. †Megatherium Cuvier 1796
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†Megatherium altiplanicum Saint-Andre and De Iuliis 2001
†Megatherium americanum Cuvier 1796
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Invalid names: Essonodontherium gervaisi Gervais and Ameghino 1880 [synonym]
†Megatherium bergi Moreno and Mercerat 1891
†Megatherium celendinense Pujos 2006
†Megatherium elenense Hoffstetter 1949
†Megatherium gallardoi Ameghino and Kraglievich 1921
†Megatherium gaudryi Moreno 1888
†Megatherium istilarti Kraglievich 1925
†Megatherium lundi Gervais and Ameghino 1880
†Megatherium medinae Philippi 1893
†Megatherium mirabile Leidy 1855
†Megatherium rectidens Rovereto 1914
†Megatherium sundti Philippi 1893
†Megatherium tarijense Gervais and Ameghino 1880
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Invalid names: Megatherium filholi Moreno 1888 [synonym]
†Megatherium uquiense Kraglievich 1930
†Megatherium urbinai Pujos and Salas 2004
Invalid names: Essonodontherium Ameghino 1884 [synonym], Megatherium antiquum Ameghino 1885 [nomen dubium], Neoracanthus Ameghino 1889 [synonym], Oracanthus Ameghino 1885 [synonym]
G. †Plesiomegatherium Roth 1911
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†Plesiomegatherium halmyronomum Cabrera 1928
†Plesiomegatherium hansmeyeri Roth 1911
Invalid names: Plesiomegatherium triangulatum Rusconi 1944 [nomen vanum]
G. †Pliomegatherium Kraglievich 1930
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†Pliomegatherium lelongi Kraglievich 1930
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Invalid names: Pliomegatherium paranensis Kraglievich 1930 [synonym]
G. †Pyramiodontherium Rovereto 1914
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†Pyramiodontherium bergi Moreno and Mercerat 1891
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Invalid names: Plesiomegatherium burmeisteri Moreno and Mercerat 1891 [synonym], Pyramiodontherium dubium Rovereto 1914 [synonym]
†Pyramiodontherium brevirostrum Carlini et al. 2002
†Pyramiodontherium carlesi Kraglievich 1930
†Pyramiodontherium remulsum Ameghino 1886
†Pyramiodontherium scillatoyanei De Iuliis et al. 2004
Invalid names: Xenocninae Paula Couto 1980 [synonym]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | median | ||||
|---|---|---|---|---|---|---|---|
| Unciform height | 2 | 57.2 | 57.2 | ||||
| Unciform diameter | 2 | 67.4 | 67.4 |
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| Source: f = family, subc = subclass, c = class, subp = subphylum | |||||
| References: Lillegraven 1979, Nowak 1999, Carroll 1988, Ji et al. 2002, Hendy et al. 2009 | |||||
Age range: base of the Santacrucian to the top of the Holocene or 17.50000 to 0.00000 Ma
Collections (276 total)
Oldest occurrences | |||
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Miocene - Pleistocene | Argentina (Santa Cruz) | Megatherium sp. (54123) | |
| Burdigalian - Langhian | Bolivia | Megatheriinae indet. (91435) | |
| Santacrucian | Peru (Cusco) | Megatherium sp. (145126) | |
| Friasian | Chile | Megathericulus friasensis (176666) | |
| Langhian | Bolivia (Potosí) | Megatheriinae indet. (68402) | |
| Serravallian | Bolivia (Tarija) | Megathericulus patagonicus (197501 197502) | |
| Laventan | Colombia (Huila) | Megatheriinae indet. (133648 133693 135348 136211 187114 187976) | |
| Laventan | Peru (Ucayali) | Megathericulus sp. (144950) | |
| Tortonian | Argentina (Chubut) | Megathericulus patagonicus (201906 201907) | |
| Late/Upper Miocene | Venezuela | Urumaquia robusta (92751) | |
Youngest occurrences |
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| Time interval | Ma | Country or state | PBDB collection number |
| Late/Upper Pleistocene | Argentina | Megatherium americanum (213470 213489) | |
| Late/Upper Pleistocene (high glacial) | Venezuela (Zulia) | Eremotherium sp. (63515) | |
| Late/Upper Pleistocene | Mexico (Jalisco) | Eremotherium laurillardi (212360) | |
| Late/Upper Pleistocene | Guatemala (Guatemala City) | Eremotherium laurillardi (71294) | |
| Late/Upper Pleistocene - Holocene | Brazil (Sergipe) | Eremotherium laurillardi (147191) | |
| Late/Upper Pleistocene - Holocene | Argentina (Buenos Aires) | Megatherium sp. (191127) | |
| Late/Upper Pleistocene - Holocene | Argentina (Santiago del Estero) | Megatherium americanum (216693) | |
| Late/Upper Pleistocene - Holocene | Brazil (Rio Grande do Norte) | Eremotherium laurillardi (93235 148309) | |
| Holocene | Brazil (Bahia) | Eremotherium laurillardi (147605) | |
| Holocene | Argentina | Megatherium americanum (93267) | |