PENNSYLVANIA
ALLEGHANY COUNTY
ABOUT 6 M N OF PITTSBURGH
ALONG THE COURSE OF MCKNIGHT ROAD
CONEMAUGH GROUP
LATE PENNSYLVIANIAN
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? magnus