LES REPTILES MARINS ...
LES REPTILES MARINS DU TOARCIEN (JURASSIQUE INFERIEUR) BELGO-LUXEMBOURGEOIS
P. GodefroitMemoirs of the GSB n°39 - 1994
ABSTRACT.
Toarcian (Lower Jurassic) outcrops have yielded many marine reptiles Ichthyosauria, Thalattosuchia and Plesiosauria in Belgiurn and, principally, in Grand Duchy of Luxemburg. Their preservation allows a determination at a specific level as also the description of badly known anatomical characters. The study of ichthyosaurs required a systematic revision of the genus Stenopterygius. A palaeogeographical synthesis of Toarcian marine reptiles is proposed. Important quantitative differences can be observed in the composition of marine reptiles' faunae from Württemberg (Germany), Yorkshire (England) and Luxemburg. This latter fauna is characterized by a predominance of animal weIl adapted for the life in open sea.
