Print ISSN: 0031-0247
Online ISSN: 2274-0333
Eocene otoliths (Clinchfield Formation), Georgia
Hypoplasia: CT-scan or naked eye?
New elephant cranium from early Pliocene Ileret, Kenya
Early adaptive radiation of Theridomorpha
Evolution et extinction des reptiles marins au Mésozoïque
Decouverte d'un nouveau Diacodexis (Artiocactyla, Mammalia) dans l'Eocène inférieur de Silveirinha, Portugal.Artiodactyla; Eocene; Migration; Portugal; Silveirinha
A new artiodactyl, Diacodexis antunesi n.sp., is described from the early Eocene of Silveirinha, Portugal. Comparisons are made with Diacodexis gazini GODINOT, 1978, D. varleti SUDRE et al., 1983, D. cf. varleti from Paris Basin sites, D. sp. from Dormaal and from localities in Spain and England, D. secans from North America and D. pakistanensis from Asia; affinities and evolutive tendencies are discussed. The presence of Diacodexis in the locality of Silveirinha confirms the very early Eocene age of the latter. As Diacodexis antunesi appears ta be more primitive than D. gazini from Rians (early Eocene of France), it lends corroboration to the interpretation (essentially based previously on condylarths) of the Silveirinha assemblage as the oldest Eocene fauna known in Europe and supports the hypothesis that early artiodactyls migrated from Europe to North America.
Published in Vol. 19, Fasc. 1 (1989)