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Acoelohyrax sigma
Taxonomy
Trimerostephanos sigma was named by Ameghino (1901). Its type specimen is MACN 10967, partial left mandible bearing worn m1-3, a mandible, and it is a 3D body fossil. Its type locality is Mustersan of Patagonia, which is in a Mustersan terrestrial horizon in Argentina.
It was recombined as Trimerostephanus sigma by Ameghino (1901); it was recombined as Acoelohyrax sigma by Simpson (1967); it was recombined as Puelia sigma by Bond and López (1993).
It was recombined as Trimerostephanus sigma by Ameghino (1901); it was recombined as Acoelohyrax sigma by Simpson (1967); it was recombined as Puelia sigma by Bond and López (1993).
Synonymy list
| Year | Name and author |
|---|---|
| 1901 | Trimerostephanus sigma Ameghino p. 416 |
| 1901 | Trimerostephanos sigma Ameghino p. 419 |
| 1967 | Acoelohyrax sigma Simpson |
| 1993 | Puelia sigma Bond and López p. 66 |
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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.
†Acoelohyrax sigma Ameghino 1901
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. Bond and G. M. López 1993 | As for comparing the Mustersian species tentatively placed by Simpson, 1967 within the genus Acoelohyrax, they were considered by Odreman Rivas (1978: 35) as representatives of the family Notohippidae, although different and more generalized than Eomorphippus. Indeed, the comparison between these species and Puelia plicata with the unpublished material mentioned above (Pampahippus gen. nov.) allows us to recognize Puelia plicata Roth, 1902 as a primitive Notohippidae and including in this genus, as a new combination, the species P. coarctatus Ameghino, 1901 and P. sigma Ameghino, 1901. Trimerostephanos coalitus Ameghino, 1901 is considered a probable large Notohippidae, very different and more advanced than the species recognized for the genus Puelia.
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