KANSAS

DICKENSON COUNTY

ELMO

PROBABLY CLYDE FORMATION EQUIVALENT
LOWER TO MIDDLE WAGGONER RANCH FORMATION (FORMERLY CLYDE FORMATION, UPPER WICHITA GROUP)

UPPER WICHITA GROUP

LAND-VERTEBRATE FAUNACHRON LOWER TO MIDDLE C

LOWER LEONARDIAN STAGE

UPPER ROTLIEGENDES EPOCH

EARLY PERMIAN

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: REPTILIA LAURENTI, 1768

SUBCLASS: SYNAPSIDA OSBORN, 1903

ORDER: PELYCOSAURIA COPE, 1878

SUBORDER: EUPELYCOSAURIA KEMP, 1982

INFRAORDER: EDAPHOSAURA NOVA

Family: EDAPHOSAURIDAE Cope, 1882

Edaphosaurus cruciger
= Dimetrodon cruciger
= Naosaurus cruciger

_____________________________________________________________________________________