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Theropod (Early Jurassic) from Luxembourg (free pdf)
From: Ben Creisler
A new paper in open-access:
Dominique Delsate & Martín D. Ezcurra (2014)
The first Early Jurassic (late Hettangian) theropod dinosaur remains
from the Grand Duchy of Luxembourg..
GEOLOGICA BELGICA 17(2): 175-181
Body fossils of earliest Jurassic (Hettangian) dinosaurs are scarce
worldwide. Here we report two isolated dinosaur remains from the
marine upper Hettangian (the Schlotheimia angulata ammonite Zone)
Luxembourg Sandstone Formation, collected at Brouch, Grand Duchy of
Luxembourg. The small to medium-sized pedal phalanx III-1 is referred
to a neotheropod dinosaur based on the combination of the following
features: proximal end with a lateral margin formed by two straight
margins meeting at a wide angle, distal end with a well-defined
semilunate extensor fossa and a proximodistally elongated shaft. The
isolated tooth crown most likely belongs to an indeterminate theropod,
because of its labiolingually compressed shape and the presence of
sharp mesial and distal carinae and denticles along its distal edge.
These remains represent the first Jurassic dinosaur specimens reported
from the Grand Duchy of Luxembourg, enlarging the meagre record of the
group immediately after the Triassic-Jurassic mass extinction event.