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Yuraramirim montealtensis
Discussion
Etymology. The name refers to Monte Alto municipality where the holotype was found
Taxonomy
Yuraramirim montealtensis was named by Ferreira et al. (2018). Its type specimen is MPMA 04-0008/89, a partial skeleton (partial skull lacking both premaxillae and squa- mosals, most of the maxillae, and portions of several other bones), and it is a 3D body fossil. Its type locality is 4 km west of Monte Alto, which is in a Campanian/Maastrichtian terrestrial sandstone in the Adamantina Formation of Brazil. It is the type species of Yuraramirim.
Synonymy list
| Year | Name and author |
|---|---|
| 2018 | Yuraramirim montealtensis Ferreira 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.
†Yuraramirim montealtensis Ferreira et al. 2018
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| G. S. Ferreira et al. 2018 | A small Podocnemidoidae based on the right angle formed by the processus trochlearis pterygoidei and the cavum pterygoidei; a Peiropemydidae based on the anteroventral emargination projecting above the ventral level of the orbit (Ga ney et al. 2011). Compared to other peiropemydid and Bauru group turtles, it is similar in size to Bauruemys elegans, but smaller than all other peiropemydids; the skull is roughly the same height along its entire length, as in Peiropemys mezzalirai and Lapparentemys vilavilensis, differing from that of Bauruemys elegans; the rostral tip of the basisphenoid is acute as in Pricemys caiera, but not in Bauruemys elegans and Peiropemys mezzalirai; the foramen palatinum posterius is formed by the palatine and pterygoid, di ering from Peiropemys mezzalirai; the fossa precolumel- laris is very large as in Peiropemys mezzalirai, in contrast to Pricemys caiera; skull dermal scute vii (sensu Ferreira et al. 2015; same as interparietal scute) has the anterior margins on the frontal and lateral edges converging posteriorly as in Bau- ruemys elegans, Lapparentemys vilavilensis, and Peiropemys mezzalirai, but di ering from the latter two by an anterior notch on the midline, as also found in Bauruemys elegans. |
Measurements
No measurements are available
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| Source: subo = suborder, c = class, subp = subphylum | |||||
| References: Hendy et al. 2009, Carroll 1988, Uetz 2005 | |||||
Age range: base of the Late/Upper Campanian to the top of the Early/Lower Maastrichtian or 83.60000 to 66.00000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Campanian - Early/Lower Maastrichtian | Brazil (São Paulo) | Yuraramirim montealtensis (type locality: 161609) |