Print ISSN: 0031-0247
Online ISSN: 2274-0333
Frequency: biannual
A pangolin from the French Quercy phosphorites
The origin of dinosaurs
Les traces de pas d'amphibiens, de dinosaures et autres reptiles du Mesozoïque Français
The geologically youngest remains of an ornithocheirid pterosaur from the late Cenomanian (Late Cretaceous) of northeastern Mexico with implications on the paleogeography and extinction of Late Cretaceous ornithocheirids
La palichnofaune de vertébrés tétrapodes du permien supérieur du Bassin de Lodève .
Eocene (54) , Quercy phosphorites (37) , systematics (31) , Rodents (29) , Mammalia (26)
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Dilambodont Molars :a functional interpretation of their evolutionPercy M. ButlerKeywords: Convergent evolution; Dilambdodont; Molar function; Molar teethAbstract In dilambdodont molars the primitive crest between paracone and metacone (centrocrista) is represented by a pair of crests that join the mesostyle (postparacrista, premetacrista). The cutting action of these crests against the crests of the hypoconid is described. Dilambdodonty is a derived adaptation for greater cutting efficiency. It has evolved several times and in more than one way. Article infos Published in Vol. 25, Fasc. 2-4 (1996) |
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