Les Créodontes (Mammifères)du gisement du Geiseltal (Eocène moyen, RDA)
Abstract
The revision of the Creodonts Hyaenodontidae from Geiseltal (Halle GDR) indicates that there are 1 Hyaenodontinae and 6 Proviverrinae of which two, Matthodon tritens gen. et sp. nov and Allopterodon matthesi sp. nov. are new and two others, Proviverra typica and Cynohyaenodon trux occur for the first time outside their type locality Egerkingen γ. The stratigraphic distribution of the specimens enables two assemblages to be distinguished. The older comprises Oxyaenoides bicuspidens, Matthodon tritens and Allopterodon matthesi and is confined to the "untere Unterkohle" (MP11). It shows affinities with species from the Cuisian, but has no taxon in common with Messel, surely the same age. The younger assemblage consists of Prodissopsalis eocaenicus, Leonhardtina gracilis, Cynohyaenodon trux and Proviverra typica. Except for the last species, it represents immigrants whose the appearance at the base of the "Mittelkohle" indicates the faunal renewal marking the boundary between MP 12 and 13. All the species described having been recorded from various French localities (Palassou, Issel Aumelas, Bouxwiller…), their evolutionary stage are compared and used for deducing correlations.
- Publication:
-
Géobios
- Pub Date:
- 1990
- DOI:
- 10.1016/0016-6995(90)80028-E
- Bibcode:
- 1990Geobi..23..607L
- Keywords:
-
- Mammalia;
- Creodonta;
- Lutétien;
- Geiseltal;
- Systématique;
- Biostratigraphie