Thuringothyris is known from the holotype MNG 7729, articulated well-preserved skull and partial postcranial skeleton, and from the referred specimens MNG 10652, poorly preserved skull and partial vertebral column, MNG 10647, disarticulated cranial and postcranial remains of at least four individuals, MNG 10183, slightly crushed skull and partial postcranial skeleton and MNG 11191, poorly preserved skull and partial limbs. All specimens were collected from the Tambach-Sandstein Member, the uppermost part of the Tambach Formation, dating to the Artinskian stage of the Late Cisuralian Series (or alternatively upper Rotliegend), about 284-279.5 million years ago. They were found in the Bromacker Quarry, the middle part of the Thuringian Forest, near the small town of Tambach-Dietharz.