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Baraguatherium takumara
Taxonomy
Baraguatherium takumara was named by Rincón et al. (2016). It is considered to be a form taxon. It is a 3D body fossil. Its type locality is Cerro La Cruz, which is in a Burdigalian lagoonal mudstone in the Castillo Formation of Venezuela. It is the type species of Baraguatherium.
Synonymy list
| Year | Name and author |
|---|---|
| 2016 | Baraguatherium takumara Rincón 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.
†Baraguatherium takumara Rincón et al. 2016
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. D. Rincón et al. 2016 | Baraguatherium differs from other sloths in thefollowing character combination: toothrows parallel in occlu-sal view; long axis of molariforms parallel to the long axis ofthe toothrow; mandibular symphysis extends to the middle ofthe second lower tooth (mf1); diastema absent; tooth with avery thin layer of cementum; mf1-mf3 series of similar sizeand bilobate, with mf3 conspicuously piriform (anterior lobemuch wider than the posterior lobe); occlusal surface of toothbeveled. Femur diaphysis straight; third trochanter positioned atthe middle of the diaphysis and projects posteriorly;ectepicondyle and entepicondyle robust and project prominently.Baraguatherium differs from members of Megatheroideaand several Miocene mylodontoids (except Brievabradys,Orophodon,Octodontotherium,andOctodontobradys)inhaving a piriform last lower molariform (mf3). Differs fromParoctodontotherium,Octodontotherium,andOrophodon inhaving molariforms with a thin layer of cementum. Differsfrom Bolivartherium,Orophodon,andPseudoprepotheriumconfusum by the presence of three bilobate lower molariforms.Differs from Brievabradys by its larger size, the presence ofthree bilobate lower molariforms, and the parallel lowertoothrow. Differs from Octodontotherium by the absence ofa marked asymmetric step between the anterior and posteriorlobes in the last lower molariform. Differs fromOctodontobradys by molariforms more quadrangular (in oc-clusal view) and mf3 piriform. Differs from Pseudoglyptodonspp. by the presence of bilobed (not trilobed) lowermolariforms |
Measurements
No measurements are available
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| Source: f = family, subc = subclass, c = class, subp = subphylum | |||||
| References: Lillegraven 1979, Carroll 1988, Ji et al. 2002, Nowak 1999, Hendy et al. 2009 | |||||
Age range: Burdigalian or 20.45000 to 15.98000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Burdigalian | Venezuela (Lara) | Baraguatherium takumara (type locality: 175185) |