The last “pelycosaur”: a varanopid synapsid from the Pristerognathus Assemblage Zone, Middle Permian of South Africa - Sean P. Modesto; Roger M. H. Smith; Nicolás E. Campione; Robert R. Reisz (The Science of Nature, 2011)

Osteomyelitis in a Paleozoic reptile: ancient evidence for bacterial infection and its evolutionary significance - Robert R. Reisz; Diane M. Scott; Bruce R. Pynn; Sean P. Modesto (The Science of Nature, 2011)