A new species of trionychid turtle, Axestemys infernalis sp. nov., from the Late Cretaceous (Maastrichtian) Hell Creek and Lance formations of the Northern Great Plains, USA

Walter Joyce, Donald Brinkman, Tyler Lyson
2019 Palaeontologia Electronica  
doi:10.26879/949 fatcat:c6ezxux47basxbmjyw3kgsysiu