Fig. 1. Remaining specimen of the eosauropterygian diapsid Proneusticosaurus silesiacus Volz, 1902 (MGU Wr. 4438s), from the Lower Muschelkalk of Poland. A. Photograph of the remaining part of the holotype. B. Distally incomplete femur. Sampling location is indicated by the black arrow, the grey arrow marks the position of the femur at the slab. Arrows indicating the anterior orientation is only an estimate because the specimen is partially disarticulated. Abbreviations: v, vertebra. For more details see Volz (1902) and Rieppel and Hagdorn (1997) who both provided outline sketches of the bones preserved with the slab.

Published as part of Klein, Nicole & Surmik, Dawid, 2021, Bone histology of eosauropterygian diapsid Proneusticosaurus silesiacus from the Middle Triassic of Poland reveals new insights into taxonomic affinities, pp. 585-598 in Acta Palaeontologica Polonica 66 (3) on page 587, DOI: 10.4202/app.00850.2020, http://zenodo.org/record/12196401