Print ISSN: 0031-0247
Online ISSN: 2274-0333
Werneburg et al. New Permian Caseid from France
Abstract book of the 18th Conference of the EAVP
Small sauropod tracks, Southern France
Les traces de pas d'amphibiens, de dinosaures et autres reptiles du Mesozoïque Français
Hypoplasia: CT-scan or naked eye?
Ein neuer condylarthre und ein tillodontier (Mammalia) aus dem Mitteleozän des Geiseltales.Condylarthra; Eocene; Europe; Mammalia; Taxonomy; Tillodontia
In the course of a revision of the Equoidea numerous dentitions as well as a partial skeleton of a Phenaeodont were discovered from the Middle Eocene lignite beds of the Geiseltal locality. These fossils are recognized as a new genus and species of Phenacodontidae : HaIlensia matthesi n.g. n.sp.. The species is present in the « untere und obere Unterkohle ›› (uUK, oUK = the lower and upper part of the Lower Coal Seam) as well as in the « obere Mittelkohle ›› (oMK = the upper part of the Middle Coal Seam). Two fragmentary upper jaws described and figured by Matthes (1977) as Propachynolophus gaudryi are also belonging to Hallensia matthesi. Thus the decisive argument for classifying the " Unterkohle " of the Geiseltal section as Lower Eocene has to be dropped. Another relict form of the Geiseltal is Esthonyx tardus n. sp. documented by a fragmentary mandible coming from the « untere Unterkohle ››. This is the latest Tillodont from Europe. Contrasting to E. munieri from the european Lower Eocene the dentition of E. tardus is morphologically more progressive.
Published in Vol. 16, Fasc. 1 (1986)