PeerJ Author 270 Points Contributions by role Author 270 Contributions by subject area Paleontology Zoology Dawid Józef Dróżdż PeerJ Author Summary Paleontology Zoology PeerJ Contributions Articles 2 December 21, 2018 Shell variability in the stem turtles Proterochersis spp. Tomasz Szczygielski, Justyna Słowiak, Dawid Dróżdż https://doi.org/10.7717/peerj.6134 PubMed 30595986 October 2, 2018 Osteology of a forelimb of an aetosaur Stagonolepis olenkae (Archosauria: Pseudosuchia: Aetosauria) from the Krasiejów locality in Poland and its probable adaptations for a scratch-digging behavior Dawid Dróżdż https://doi.org/10.7717/peerj.5595 PubMed 30310738