Search results for "Cheek teeth"
showing 3 items of 3 documents
Dental wear at macro- and microscopic scale in rabbits fed diets of different abrasiveness: A pilot investigation
2020
To differentiate the effects of internal and external abrasives on tooth wear, we performed a controlled feeding experiment in rabbits fed diets of varying phytolith content as an internal abrasive and with addition of sand as an external abrasive. 13 rabbits were each fed one of the following four pelleted diets with different abrasive characteristics (no phytoliths: lucerne L; phytoliths: grass G; more phytoliths: grass and rice hulls GR; phytoliths plus external abrasives: grass, rice hulls and sand GRS) for two weeks. At the end the feeding period, three tooth wear proxies were applied to quantify wear on the cheek teeth at macroscopic and microscopic wear scales: CT scans were obtained…
Un nuevo suido con dientes yugales tubulidentados e hipselorrizos del Mioceno inferior de Córcoles, España
2018
[EN] Excavations at Córcoles, Guadalajara, Spain (MN 4) in October 1987, yielded a mandible and several isolated teeth of a strange suiform with tubulidentate cheek teeth, initially interpreted to be the remains of Tubulidentata. The specimens are complete enough to remove any doubt about which Order (Artiodactyla) and Superfamily (Suoidea) they belong to. They are here attributed to the Family Doliochoeridae, being related to the genera Bransatochoerus (MP 30) and Lorancahyus (MN 2) both of which have hypsorhizic cheek teeth, the latter with tubules in the teeth, but not to the fully-expressed extent seen in the fossils from Córcoles and the molars retain a distinct and large pulp cavity, …
Brachyodonty and hypsodontyin some Palaeogene Eurasiatic Lagomorphs
1977
Abstract Palaeogene Eurasiatic lagomorphs show more or less different degrees and kinds of brachiodonty and hypsodonty in the cheek teeth. No fully brachyodont lagomorphs are known up to the present. The probably Paleocene Mimolagus from Western Kansu shows the less advanced stage against partial hypsodonty in the upper cheek teeth. Partial hypsodonty is more advanced in the late Eocene Mongolian genera Shamolagus, Gobiolagus and Lushilagus. Roots, however, are still well developed in the cheek teeth. Some recent discoveries from earlier Oligocene sites in France and Germany seem to represent a comparable degree of hypsodonty. The Asiatic Oligocene Desmatolagus is partiallyhypsodont with ro…