Triassic
Paleozoic
Anthozoa
Amphibia
Scleractinia
Ammonoidea
Captorhinus
Platyhystrix
Diplocaulus
Pelodosotis
Mycterosaurus
Pelycosauria
Sphenacodon
Dvinosaurus
Coelurosauravidae
Cacops
Helicoprion
Haptodus
Rhinesuchus
Ophiacodon
Syringopora
Actinodon
Orodus
Medlicottia
Charassognathus
Glossopteris | Saxonerpeton
Eodicynodon
Proterosuchidae
Procolophon
Cardiocephalus
Casea
Fadenia
Eothyris
Nigerpeton
Pristeroognathus
Avicephala
Sarcoprion
Guadalupe Mountains National Park
Euchambersia
Orthacanthus
Permian Therocephalia
Mesozoic geology
Permian Temnospondyli
Permian Ammonoidea
Permian Proterosuchidae
Permian Avicephala
Dimetrodon
Fossil localities
Permian animals
Permian plants
Permian Chondrichthyes | Permian Anthozoa
Geology by period
Permian Cynodontia
Permian Protorosauria
Permian Dicynodontia
Permian geology
Sigillaria
Edaphosaurus
Dicynodontia
Runcorn
Permian Pelycosauria
Cheshire
Pachylocrinus
Cynodontia
Zygopteridales
Plantae by period
Paleozoic animals
Temnospondyli
Protorosauria
Chondrichthyes
Dinocephalia |
