Plutoniosaurus Wikipedia
Taxonomy. Plutoniosaurus was named by Vladimir Efimov in 1997 based on the holotype specimen UPM 2/740, a partial skeleton. In 1999, Maxim Arkhangel'skii synonymized the genus with Platypterygius, as did Michael Maisch and Andreas Matzke in 2000.: 82 While agreeing with the synonymy, Christopher McGowan and Ryosuke Motani considered P. bedengensis to be a nomen dubium within the genus in 2003 ...