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A large, multiple-tooth-rowed captorhinid reptile (Amniota: Eureptilia) from the upper Permian of Mallorca (Balearic Islands, western Mediterranean).

December 25 , 2016:

A specimen referred to Moradisaurinae incertae sedis (MBCN 15730) is the first record of a vertebrate body fossil from the Permo-Triassic of the island of Mallorca (Balearic Islands, western Mediterranean) that can be identified on a relatively low taxonomic level. The material consists of a partial maxillary tooth plate and adhering parts of the palate. The maxilla bears three rows of deeply implanted teeth that are subparallel to each other and to the margins of the tooth plate. The teeth are bulbous-conical, and those in the posterior part of the middle tooth row have a rounded anterior (mesial) and a straight posterior (distal) margin in occlusal view and show a distinctive wear pattern of deep grooves running vertically down the lingual and/or labial sides of the crown. The teeth in the lingual and labial tooth rows are elliptical or teardrop-shaped in cross-section, with the long axis forming an angle of about 45° to the midline of the tooth plate. Because the available anatomical information is almost exclusively restricted to dental characters, an assignment of the specimen to a distinctive species or genus is not possible at this time. Based on dentition, size, and stratigraphy, it nevertheless can be clearly considered as a representative of the Captorhinidae. The cladistic analysis reveals that it probably belongs to the captorhinid subclade Moradisaurinae, even though statistical support for its relationship to other moradisaurines is weak.

Torsten Liebrecht, Josep Fortuny, Àngel Galobart, Johannes Müller & P. Martin Sander (2016)
A large, multiple-tooth-rowed captorhinid reptile (Amniota: Eureptilia) from the upper Permian of Mallorca (Balearic Islands, western Mediterranean).
Journal of Vertebrate Paleontology: e1251936
DOI: 10.1080/02724634.2017.1251936.

 



 
             
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