Crocodile. Back part of the lower jawbone. Found at the clay pit in Geisingen. Aalenian, Geisingen Oolith. The creature was extrapolated to be at least 7 meters long, one of the largest ever found world wide in these layers. Currently in the collection at Tuebingen for research. Update Aug.2020: I've now reassigned this to Glaphyrorhynchus aalensis with a question mark according to the most recent revisions.
The above photo is of the original, the two below are of the cast.