PBDB Taxon

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Astrapotherium magnum

Mammalia - Astrapotheria - Astrapotheriidae

Taxonomy

Nesodon magnus was named by Owen (1853). It is not extant.

It was recombined as Astrapotherium magnum by Ameghino (1889), Lydekker (1894), Ameghino (1894) and Kramarz and Bond (2010).

Synonyms

Astrapotherium columnatum was named by Ameghino (1891).

It was synonymized subjectively with Astrapotherium magnum by Kramarz et al. (2019).
Astrapotherium nanum was named by Ameghino (1891).

It was synonymized subjectively with Astrapotherium magnum by Kramarz et al. (2019) and Kramarz et al. (2019).
Astrapotherium giganteum was named by Ameghino (1891).

It was synonymized subjectively with Astrapotherium burmeisteri by Kramarz et al. (2019).
Astrapotherium delimitatum was named by Ameghino (1891).

It was synonymized subjectively with Astrapotherium burmeisteri by Kramarz et al. (2019).
Astrapodon carinatus was named by Ameghino (1891).

It was synonymized subjectively with Astrapotherium magnum by Kramarz et al. (2019).
Astrapotherium patagonicum was named by Burmeister (1879).

It was synonymized subjectively with Astrapotherium magnum by Ameghino (1894), Lydekker (1894) and Kramarz et al. (2019).
Astrapotherium burmeisteri was named by Mercerat (1891).

It was synonymized subjectively with Astrapotherium magnum by Lydekker (1894); it was synonymized subjectively with Astrapotherium giganteum by Ameghino (1894).
Astrapotherium robustum was named by Mercerat (1891).

It was synonymized subjectively with Astrapotherium giganteum by Ameghino (1894); it was synonymized subjectively with Astrapotherium magnum by Lydekker (1894); it was synonymized subjectively with Astrapotherium burmeisteri by Kramarz et al. (2019).
Astrapotherium gaudryi was named by Mercerat (1891).

It was synonymized subjectively with Astrapotherium magnum by Ameghino (1894), Lydekker (1894) and Kramarz et al. (2019).
Astrapotherium angustidens was named by Mercerat (1891).

It was synonymized subjectively with Astrapotherium magnum by Ameghino (1894) and Kramarz et al. (2019).
Astrapotherium marshi was named by Mercerat (1891).

It was synonymized subjectively with Astrapotherium magnum by Ameghino (1894) and Kramarz et al. (2019).
Listriotherium filholi was named by Mercerat (1891).

It was synonymized subjectively with Astrapotherium magnum by Ameghino (1894).
Xylotherium mirabile was named by Mercerat (1891).

It was synonymized subjectively with Astrapotherium magnum by Ameghino (1894).
Astrapotherium karaikense was named by Ameghino (1904).

It was synonymized subjectively with Astrapotherium magnum by Kramarz et al. (2019).

Synonymy list

Year	Name and author
1853	Nesodon magnus Owen p. 291 figs. 15-18
1879	Astrapotherium patagonicum Burmeister p. 517
1887	Nesodon magnus Ameghino p. 60
1889	Astrapotherium magnum Ameghino p. 622
1891	Astrapotherium columnatum Ameghino p. 12
1891	Astrapotherium delimitatum Ameghino p. 12
1891	Astrapotherium giganteum Ameghino p. 12
1891	Astrapotherium nanum Ameghino p. 12
1891	Astrapodon carinatus Ameghino p. 13
1891	Astrapotherium marshi Mercerat
1891	Listriotherium filholi Mercerat
1891	Xylotherium mirabile Mercerat
1891	Astrapotherium angustidens Mercerat p. 216
1891	Astrapotherium burmeisteri Mercerat p. 249
1891	Astrapotherium gaudryi Mercerat p. 250
1891	Astrapotherium robustum Mercerat p. 251
1894	Astrapotherium columnatum Ameghino p. 52
1894	Astrapotherium giganteum Ameghino p. 52
1894	Astrapotherium magnum Ameghino p. 52
1894	Astrapotherium nanum Ameghino p. 52
1894	Astrapotherium delimitatum Ameghino p. 53
1894	Astrapodon carinatus Ameghino p. 54
1894	Astrapotherium magnum Lydekker p. 51
1894	Astrapotherium angustidens Lydekker p. 54
1904	Astrapotherium karaikense Ameghino p. 82
2010	Astrapotherium magnum Kramarz and Bond

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata
—	Osteichthyes	()
subclass	Sarcopterygii	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)
subclass	Tetrapodomorpha	()
—	Tetrapoda
—	Reptiliomorpha
—	Anthracosauria
subclass	Amphibiosauria	Kuhn 1967
—	Cotylosauria	()
—	Amniota
subclass	Synapsida
—	Therapsida	()

Rank	Name	Author
infraorder	Cynodontia	()
—	Mammaliamorpha
—	Mammaliaformes
class	Mammalia
—	Cladotheria
—	Zatheria
subclass	Tribosphenida	()
subclass	Theria
—	Eutheria	()
—	Placentalia
—	Afrotheria	Stanhope et al. 1998
—	Paenungulatomorpha
—	Paenungulata	Simpson 1945
—	Sudamericungulata
order	Astrapotheria
family	Astrapotheriidae	Ameghino 1887
genus	Astrapotherium	Burmeister 1879
species	magnum	(Owen 1853)

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.

†Astrapotherium magnum Owen 1853

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Invalid names: Astrapodon carinatus Ameghino 1891 [synonym], Astrapotherium angustidens Mercerat 1891 [synonym], Astrapotherium burmeisteri Mercerat 1891 [synonym], Astrapotherium columnatum Ameghino 1891 [synonym], Astrapotherium gaudryi Mercerat 1891 [synonym], Astrapotherium karaikense Ameghino 1904 [synonym], Astrapotherium marshi Mercerat 1891 [synonym], Astrapotherium nanum Ameghino 1891 [synonym], Astrapotherium patagonicum Burmeister 1879 [synonym], Listriotherium filholi Mercerat 1891 [synonym], Xylotherium mirabile Mercerat 1891 [synonym]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

phosphaticsubp

Maximum body mass:

1021.63 kgs

Minimum body mass:

1021.63 kgs

Body mass estimate:

1021.63 kg

Body mass source:

publisheds

Environment:

terrestrialsubc

Locomotion:

actively mobilec

Life habit:

scansorialsubc

Diet:

herbivoreo

Reproduction:

viviparoussubc

Created:

2013-04-14 01:29:36

Modified:

2013-04-13 10:29:36

Source: s = species, o = order, subc = subclass, c = class, subp = subphylum

References: Hendy et al. 2009, Carroll 1988, Lillegraven 1979, Vizcaíno et al. 2010, Ji et al. 2002, MacFadden et al. 1996

Age range: Santacrucian or 17.50000 to 16.30000 Ma

Collections (15 total)

Time interval	Ma	Country or state	Original ID and collection number
Santacrucian	17.5 - 16.3	Argentina (Santa Cruz)	Astrapotherium magnum (142529 142533 176576 176578 176581 176585 176590 176591 176599 176603 176625 207606) Astrapotherium magnum, Astrapotherium nanum (204358)
Santacrucian	17.5 - 16.3	Chile	Astrapotherium magnum (207598 207603)