ILLINOIS
WILL COUNTY
WILMINGTON TOWNSHIP
SLOPE OF A COAL MINE DUMP
LOWER CARBONDALE FORMATION
FRANCES CREEK SHALE
WESTPHALIAN D
LOWER UPPER SILESIAN SERIES
DESMONIENSEAN
MYACHKOVSKIAN STAGE
UPPER MOSCOVIAN EPOCH
LATE PENNSYLVANIAN (LATE CARBONIFEROUS)
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: AMPHIBIA LINNAEUS, 1758
SUBCLASS: LEPOSPONDYLI ZITTEL, 1888
ORDER: AISTOPODA MIALL, 1875
Family: PHLEGETHONTIDAE Cope, 1875
*Pseudophlegethontia turnbullorum
= Aornerepton mazonensis (partim)
= Phlegethontia mazonensis