Species: decorum (WATSON, 1926) PANCHEN, 1970
= Palaeogyrinus decorus WATSON, 1926
Holotype: NEWHM: G015.71 (HM G 15.71)
Locality: Pirnie Colliery, near Leven, Fifeshire County, England, southern United Kingdom.
Horizon: Earl David's Parrot Coal, Middle Modiolaris zone, Middle Coal Measures.
Age: Lower Westphalian B, Lower Upper Silesian series, Kashirskian Stage, Lower Moscovian Epoch, Early Middle Pennsylvanian, (Late Carboniferous).
Material: Skull roof and counterpart as natural moulds, palatquadrate and braincase.
NEWMAN, McLEAN & HUDSON, 1996
NEWHM: G055.82: Slab bearing 3 ventral dermal scutes and the impressions of 2 others.
NEWHM: G056.03: Slab bearing an intercentrum, 6 incomplete dermal scutes and the impressioins of 6 further scutes.
Locality: Black Shale, Swanwick Colliery, Derbshire County, England, southern United Kingdom.
Horizon: Upper communis Zone, Lower Coal Measures.
Age: Westphalian A, Middle Silesian Series, Upper Bashkirian – Lower Moscovian Epoch, Middle Carboniferous (Middle Pennsylvanian).
AI Coope Collection: Skull.