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Caipirasuchus montealtensis
Taxonomy
Sphagesaurus montealtensis was named by Andrade and Bertini (2008). Its type specimen is MPMA 15-001/90, a skull (Skull and mandible), and it is a 3D body fossil. Its type locality is Bairro Cachoeira, Monte Alto, which is in a Campanian/Maastrichtian fluvial sandstone in the Adamantina Formation of Brazil.
It was recombined as Caipirasuchus montealtensis by Iori et al. (2013), Pol et al. (2014) and Martinelli et al. (2018).
It was recombined as Caipirasuchus montealtensis by Iori et al. (2013), Pol et al. (2014) and Martinelli et al. (2018).
Synonymy list
| Year | Name and author |
|---|---|
| 2008 | Sphagesaurus montealtensis Andrade and Bertini |
| 2010 | Sphagesaurus montealtensis Turner and Sertich |
| 2011 | Sphagesaurus montealtensis Carvalho et al. |
| 2012 | Sphagesaurus montealtensis Bronzati et al. |
| 2013 | Caipirasuchus montealtensis Iori et al. |
| 2014 | Caipirasuchus montealtensis Pol et al. |
| 2014 | Sphagesaurus montealtensis Sertich and O'Connor |
| 2018 | Caipirasuchus montealtensis Martinelli 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.
†Caipirasuchus montealtensis Andrade and Bertini 2008
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. B. d. Andrade and R. J. Bertini 2008 | One small antorbital fenestra, elliptical, with main axis dorsoventrally oriented; jugal anterior ramus slender, enlarged only on the contact with the maxilla; sickle-like medial process present on the ventral surface of the anterior jugal ramus; prefrontal descending process narrow, elliptical in cross-section; longitudinal sagittal sulcation over the palate surface; palatine rami of the maxillae straight, inclined; palate surface concave, ‘V-shaped’ in cross-section; quadrate robust, with triangular crosssection; stout ventral quadrate ridge directed mesially; quadrate ridge reaching from the distal end of the quadrate to laterosphenoid, then anteroventrally to the pterygoid; pterygoid–basisphenoid surface plain and straight at their contact; pterygoid depression lateral to the choanae; pterygoid descending process well developed, robust and straight, directed posteroventrally 40–50 degrees; premaxillae with one pair of teeth; premaxillary teeth caniniform, without lateral compression; premaxilla ventral ramus extends slightly to the first maxillary teeth; first pair of maxillary teeth small, molariform; maxillary pairs 1–7 all molariform with strong oblique implantation (45–90 degrees of paramesial rotation, in respect to the maxillary alveolar surface); maxillary dental series forming a concave line in ventral view, concavity laterally and anteriorly oriented; symphysis high throughout the entire length, anterior section narrow in cross-section, posterior section extremely wide; mandibular rami higher than symphysis, strongly diverging backwards to the mandibular fenestra, but parallel at the mandibular fenestra; well developed coronoid process; nine mandibulary teeth, pairs 1–5 on the symphysis, 6–9 on the diverging mandibular rami; at leastmandibulary teeth pairs 2–3 incisiform, pairs 4–9molariform;mandibulary pairs 5 and posterior with a strong oblique implantation (45–90 degrees of paramesial rotation, in respect to the alveolar surface of the mandible); mandibular pairs 1–5 increase in size, pairs 5–9 decrease in size, with opposing teeth in the maxilla following the same pattern. |
Measurements
No measurements are available
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| Source: subo = suborder, c = class, subp = subphylum, uc = unranked clade | |||||
| References: Bush and Bambach 2015, Benton 1983, Carroll 1988, Hendy et al. 2009 | |||||
Age range: base of the Late/Upper Campanian to the top of the Early/Lower Maastrichtian or 83.50000 to 66.00000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Campanian - Early/Lower Maastrichtian | Brazil (São Paulo) | Caipirasuchus montealtensis (147698) Sphagesaurus montealtensis (type locality: 114458) |