A Nothosaur vertebra from a quarry in southern Germany (Baden-Württemberg). Its from a thin layer where you can find many bones and teeth from various animals (a triassic Bonebed). I found this one in 2018 but I finished prepping in this month. Its my biggest Nothosaur vertebra until now with a length of a little bit more than 6 cm. Overall the prep work took about 4 hours.
A picture of the unprepped fossil: