كتب ذات صلة

Water reptiles of the past and present

Tooth replacement phenomena in the lower vertebrates

A protorothyridid captorhinomorph reptile from the Lower Permian of Oklahoma

Parallelism in the evolution of the Permian reptilian faunas of the Old and New Worlds

• The family Caseidae
  المؤلفون: Nash, Edward G. ,  Olson, Everett Claire

• Pennsylvanian invertebrates of the Mazon Creek area, Illinois : Eurypterida
  المؤلفون: Kjellesvig-Waering, Erik N.
• Pennsylvanian invertebrates of the Mazon Creek area, Illinois. Trilobitomorpha arthropleurida
  المؤلفون: Richardson, Eugene Stanley
• Pennsylvanian invertebrates of the Mazon Creek area, Illinois
  المؤلفون: Richardson, Eugene Stanley