An unprepared nothosaurus vertebra. The vertebra is broken in half and needs to be glued. 

 Location: Heilbronn
Epoch/Age: Triassic, "Oberer Muschelkalk, "Grenzbonebed",~ 235 Million years
Size of the stone: 13 × 8 cm
Size of the fossil (in cross section) : 1,8 × 1,8 cm