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Pliolagostomus
Taxonomy
Pliolagostomus was named by Ameghino (1887).
It was assigned to Eryomydae by Ameghino (1894); to Lagostominae by Rasia and Candela (2019); and to Chinchillidae by Vizcaíno et al. (2022).
It was assigned to Eryomydae by Ameghino (1894); to Lagostominae by Rasia and Candela (2019); and to Chinchillidae by Vizcaíno et al. (2022).
Synonymy list
| Year | Name and author |
|---|---|
| 1887 | Pliolagostomus Ameghino |
| 1894 | Pliolagostomus Ameghino p. 72 |
| 2019 | Pliolagostomus Rasia and Candela p. 74 |
| 2022 | Pliolagostomus Vizcaíno 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.
G. †Pliolagostomus Ameghino 1887
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†Pliolagostomus friasensis Vucetich 1984
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Invalid names: Prolagostomus lateralis Ameghino 1889 [synonym]
†Pliolagostomus notatus Ameghino 1887
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Invalid names: Prolagostomus amplus Ameghino 1894 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. L. Rasia and A. M. Candela 2019 | Small to medium size, similar to Prolagostomus pusillus Ameghino, 1887; bilophodont P4-M2 and p4-m3 like in Eoviscaccia, Prolagostomus and Lagostomus; trilophodont M3 like in Prolagostomus and Lagostomus; narrow hypoflexus/flexid like in Prolagostomus, with a thicker cement layer than in Lagostomus; lower cheek teeth with a well-defined lingual face, forming a marked obtuse angle with the mesial face; labial face of each lophid more straight than in Prolagostomus; upper cheek teeth with the hypoflexus and labial face of each loph with the same characteristics than in the hipoflexids and lingual face of the
lophids; third loph of the M3 lingually oriented and with a transverse flexus separating it from the second loph as in Lagostomus, and differing from Prolagostomus with the third loph of the M3 disto-lingually or distally oriented (modified from Vucetich, 1984). |