PBDB Taxon

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Pleurostylodon

Mammalia - Notoungulata - Isotemnidae

Taxonomy

Pleurostylodon was named by Ameghino (1897). Its type is Pleurostylodon modicus.

It was assigned to Isotemnidae by Ameghino (1897), Simpson (1967) and Carroll (1988).

Species

P. bifidus, P. complanatus (syn. P. irregularis, P. neglectus), P. crassiramis, P. modicus (syn. P. divisus, P. limpidus, Dimerostephanos attritus, P. plexus, Dialophus simus, Trimerostephanos biconus, Parastylops coelodus, Tychostylops marculus, P. sinuosus, Anchistrum sulcosum, P. obscurus, Paratemnus geminatus) (type species), P. notabilis, P. recticrista, P. similis (syn. Coelostylops crassus, Tychostylops simus)

Synonyms

Parastylops was named by Ameghino (1897). Its type is Parastylops coelodus.

It was synonymized subjectively with Pleurostylodon by Simpson (1967).

It was assigned to Notostylopidae by Ameghino (1897).
Anchistrum was named by Ameghino (1901).

It was synonymized subjectively with Pleurostylodon by Simpson (1967).

It was assigned to Acoelodidae by Ameghino (1901).
Tychostylops was named by Ameghino (1901).

It was synonymized subjectively with Pleurostylodon by Simpson (1967).

It was assigned to Trigonostylopidae by Ameghino (1901).
Pleurostylodon notabilis was named by Ameghino (1901). It is a 3D body fossil. Its type locality is Casamayoran of Patagonia, which is in a Casamayoran terrestrial horizon in Argentina.

It was considered a nomen dubium by Simpson (1967).
Dialophus was named by Ameghino (1901).

It was synonymized subjectively with Pleurostylodon by Simpson (1967).

It was assigned to Isotemnidae by Ameghino (1901).
Coelostylops was named by Ameghino (1901).

It was synonymized subjectively with Pleurostylodon by Simpson (1967).

It was assigned to Notostylopidae by Ameghino (1901).
Porotemnus was named by Ameghino (1902).

It was synonymized subjectively with Pleurostylodon by Simpson (1967).

It was assigned to Isotemnidae by Ameghino (1902).
Pleurostylodon bifidus was named by Ameghino (1904). It is a 3D body fossil. Its type locality is Casamayoran of Patagonia, which is in a Casamayoran terrestrial horizon in Argentina.

It was considered a nomen dubium by Simpson (1967).
Paratemnus was named by Ameghino (1904).

It was synonymized subjectively with Pleurostylodon by Simpson (1967).

It was assigned to Isotemnidae by Ameghino (1904).

Synonymy list

Year	Name and author
1897	Pleurostylodon Ameghino p. 485
1897	Parastylops Ameghino p. 491
1901	Anchistrum Ameghino p. 373
1901	Tychostylops Ameghino p. 400
1901	Pleurostylodon notabilis Ameghino p. 417
1901	Dialophus Ameghino p. 418
1901	Coelostylops Ameghino p. 425
1902	Porotemnus Ameghino p. 28
1904	Pleurostylodon bifidus Ameghino p. 92
1904	Paratemnus Ameghino p. 93
1967	Pleurostylodon Simpson
1988	Pleurostylodon Carroll

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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	()
infraorder	Cynodontia	()

Rank	Name	Author
—	Mammaliamorpha
—	Mammaliaformes
class	Mammalia
—	Theriamorpha	(Rowe 1993)
—	Theriiformes	()
—	Trechnotheria
—	Cladotheria
—	Zatheria
subclass	Tribosphenida	()
subclass	Theria
—	Eutheria	()
—	Placentalia
—	Afrotheria	Stanhope et al. 1998
—	Paenungulatomorpha
—	Paenungulata	Simpson 1945
—	Sudamericungulata
order	Notoungulata
suborder	Toxodontia	Ameghino 1887
family	Isotemnidae
genus	Pleurostylodon

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.

G. †Pleurostylodon Ameghino 1897

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†Pleurostylodon complanatus Ameghino 1902

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Invalid names: Pleurostylodon irregularis Ameghino 1904 [synonym], Pleurostylodon neglectus Ameghino 1904 [synonym]

†Pleurostylodon crassiramis Ameghino 1902

†Pleurostylodon modicus Ameghino 1897

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Invalid names: Anchistrum sulcosum Ameghino 1901 [synonym], Dialophus simus Ameghino 1901 [synonym], Dimerostephanos attritus Ameghino 1902 [synonym], Parastylops coelodus Ameghino 1897 [synonym], Paratemnus geminatus Ameghino 1904 [synonym], Pleurostylodon divisus Ameghino 1901 [synonym], Pleurostylodon limpidus Ameghino 1904 [synonym], Pleurostylodon obscurus Ameghino 1904 [synonym], Pleurostylodon plexus Ameghino 1901 [synonym], Pleurostylodon sinuosus Ameghino 1902 [synonym], Trimerostephanos biconus Ameghino 1897 [synonym], Tychostylops marculus Ameghino 1901 [synonym]

†Pleurostylodon recticrista Ameghino 1904

†Pleurostylodon similis Ameghino 1901

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Invalid names: Coelostylops crassus Ameghino 1901 [synonym], Tychostylops simus Ameghino 1904 [synonym]

Invalid names: Anchistrum Ameghino 1901 [synonym], Coelostylops Ameghino 1901 [synonym], Dialophus Ameghino 1901 [synonym], Parastylops Ameghino 1897 [synonym], Paratemnus Ameghino 1904 [synonym], Pleurostylodon bifidus Ameghino 1904 [nomen dubium], Pleurostylodon notabilis Ameghino 1901 [nomen dubium], Porotemnus Ameghino 1902 [synonym], Tychostylops Ameghino 1901 [synonym]

Diagnosis

No diagnoses are available