TY - BOOK AU - Galton,Peter M. TI - Redescription of the skull and mandible of parksosaurus from the late cretaceous with comments on the family hypsilophodontidae (ornithischia) PY - 1973/// CY - Toronto PB - Royal Ontario Museum KW - Parksosaurus KW - Hypsilophodontidae KW - Paleontology KW - Cretaceous N1 - Bibliography: p. 19-21 ER -