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This is a theoropod negative footprint from a Bathonian (Jurassic) dinosaur tracksite situated in the river Jonte, in the Causses plateaux (southern France). On this platform, about a hundred of tridactyl theropods (carnivorous dinosaurs) have been found.
This site is home of the new ichnospecies Kayentapus ubacensis described in Gand et al., 2018 (DOI: 10.1016/j.annpal.2018.06.002 ), and was first investigated during my Master’s thesis back in 2012 (DOI: 10.13140/RG.2.2.10246.32323.
This negative print was taken on the removed overlying limestone bed that covered the tracksite (see https://skfb.ly/6NXqX). It also features the filling of the mudcracks present at the surface of the muddy soil when the dinosaur walked.
Turn the model upside-down to see the postivie print ;)
Thx to UBFC (Dijon) and LPG Nantes.