Orthacanthus gibbosus (Binney, 1841) NHMUK PV P 8162 Holotype
country: United Kingdom
keyword time: Carboniferous, Pennsylvanian,
stratigraphy: Coal Measures Supergroup
location: Longton
specimens: 1
Orthacanthus gibbosus (Binney, 1841) NHMUK PV P 497 Lectotype
country: United Kingdom
keyword time: Carboniferous, Pennsylvanian,
stratigraphy: Coal Measures Supergroup
location: Silverdale
specimens: 1