Print ISSN: 0031-0247
Online ISSN: 2274-0333
A femur of the giant bird Gargantuavis
Les traces de pas d'amphibiens, de dinosaures et autres reptiles du Mesozoïque Français
La palichnofaune de vertébrés tétrapodes du permien supérieur du Bassin de Lodève .
Fossil vertebrate assemblage at Las Aguilas
About the genus Propachynolophus Lemoine 1891
Les Pseudosciuridae (Mammalia, Rodentia) de l'Eocène moyen de Bouxwiller, Egerkingen et Lissieu.Bouxwiller; cranium; Egerkingen; Middle Eocene; Rodents
The description of new material from three classic middle Eocene localities of western Europe permits the addition of details to the systematics of primitive Pseudosciurids. The cranial anatomy of Protadelomys cartieri (STEHLIN and SCHAUB) from Egerkingen is described here and compared to that of the Adelomyines from the late Eocene, until now the only ones known. The morphologic and biometric study of the dentition of P. cartieri compared to that of P. alsaticus n. sp. from Bouxwiller and P. Iugdunensis n. sp. from Lissieu, forms respectively older and younger than P. cartieri, permits the evolutionary tendencies of the group to be demonstrated and shows that notable differences in age exist between these localities. This ensemble of forms can constitute a valuable guide lineage in the establishment of a fine stratigraphy of the period. Other less well known lineages are present at Egerkingen along with P. cartieri. They can be related to genera that have been noted int he late Eocene. In conclusion, a criticism of recent zonation proposals, made by divers authors, completes this article.
Published in Vol. 03, Fasc. 2 (1969)