LAOIS COUNTY
WESTEPHALIAN STAGE
LATE CARBONIFEROUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: AMPHIBIA LINNAEUS, 1758
SUBCLASS: LEPOSPONDYLI ZITTEL, 1888
ORDER: AISTOPODA MIALL, 1875
Family: OPHIDERPETONTIDAE Schwarz, 1908
Ophiderpeton brownriggii