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Pollyosbornia altidens
Taxonomy
Telmatherium altidens was named by Osborn (1908).
It was recombined as Pollyosbornia altidens by Mihlbachler (2008).
It was recombined as Pollyosbornia altidens by Mihlbachler (2008).
Synonymy list
| Year | Name and author |
|---|---|
| 1908 | Telmatherium altidens Osborn |
| 2008 | Pollyosbornia altidens Mihlbachler |
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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.
†Pollyosbornia altidens Osborn 1908
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. C. Mihlbachler 2008 | Pollyosbornia altidens is a large brontothere with an unreduced dental formula (3-1-4-3). The incisors are of mod- erate or large size and form an arched incisor row. The symphysis is relatively elongate and extends posteriorly to the p3 talonid. Other features include a relatively long postcanine diastema, a metaconid on p3 and p4 but not on p2, a very poorly developed p2 talonid, a p2 trigonid that is at least twice the length of the talonid, an elongate m3, and shallow trigonid and talonid molar basins.
From what can be discerned of the poorly preserved holotype mandible, Pollyosbornia altidens is more or less consistent with Diplacodon elatus except for its larger size, and more poorly developed p2 talonid. |