ENGLAND

DURHAM COUNTY

USWORTH COLLIERY

TOP BUSTY SEAM

LOWER COAL MEASURES

UPPER COMMUNIS ZONE

WESTPHALIAN A

MIDDLE SILESIAN SERIES

UPPER BASHKIRIAN – LOWER MOSCOVIAN EPOCH

MIDDLE CARBONIFEROUS (MIDDLE PENNSYLVANIAN).

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: AMPHIBIA LINNAEUS, 1758

NEOTETRAPODA

SUBCLASS: REPTILIOMORPHA SAVE-SODERBERGH, 1934

ORDER: ANTHRACOSAURIA WATSON, 1917

SUBORDER: ANTHRACOSAURIA SAVE-SODERBRGH, 1934

Family: ANTHRACOSAURIDAE Cope, 1875

Anthracosaurus russelli

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