OHIO

WASHINGTON COUNTY

ALONG LEITH RUN ROAD

LOWER UNIONTOWN LIMESTONE

MONONGHAELA GROUP

LATE PENNSYLVANIAN

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: OPHIACHODONTIA NOVA

Family: OPHIACODONTIDAE Nopsca, 1923

Clepsydrops sp

_____________________________________________________________________________________