Species: problematica FRITISCH, 1895
Etymology:
Holotype: NMP M.885
Locality: Plattenkohl of Humbolt Mine, Nyrany (Nurschan), Plzen Basin, Bohemia, Czech Republic.
Horizon: Gaskohl.
Biostratigraphy:
Age: Upper Westphalian D, Lower Upper Silesian, Desmoniensean, Upper Myachkovskian Stage, upper Moscovian Epoch, Late Carboniferous (Late Pennsylvanian).
Material: Articulated skull.