Genus: Hyloplesion FRITSCH, 1883
Etymology:
= Orthocosta FRITSCH, 1883
Etymology:
= Orthopleurosaurus LYDEKKER, 1890
Etymology:
= Seeleya FRITSCH, 1883
Etymology:
= Stelliosaurus FRITSCH, 1875 non JOURDAN, 1862 (Stelliosaurus, Squamata, Sphenodontidae)
Etymology:
Species: longicostatum (FRITSCH, 1875) FRITSCH, 1883
Etymology:
= Stelliosaurus longicostatus FRITSCH, 1875
Lectotype: CGH 15
Locality: Nyrany (Nurschan), Plzen Basin, Bohemia, Czech Republic.
Horizon: Gaskohl.
Biostratigraphy:
Age: Upper Westphalian D, Lower Upper Silesian Series, Desmoniensean, Upper Myachkovskian Stage, Upper Moscovian Epoch, Late Carboniferous (Late Pennsylvanian).
Material: Counterpart blocks of trunk and anterior caudal region.
Galvanotype:
CGH 16: Fragmentary skeleton.
CGH 247, CGH 248, 249, 3023: Fragmentary skeletons.
RSM 1899.32.3: Skull and skeleton.
Electrotype:
BMNH R372: Fragmentary skeleton.
BMNH R373: Fragmentary skeleton.
Referred material:
= Seeleya pusilla FRITSCH, 1883
Etymology:Holotype: CGH 3
Locality: Nyrany (Nurschan), Plzen Basin, Bohemia, Czech Republic.
Horizon: Gaskohl.
Biostratigraphy:
Age: Upper Westphalian D, Lower Upper Silesian Series, Desmoniensean, Upper Myachkovskian Stage, Upper Moscovian Epoch, Late Carboniferous (Late Pennsylvanian).
Material: Fragmentary skull and skeleton.
Electrotype: BMNH R343: Skull and skeleton.
= Orthocosta microscopica FRITSCH, 1883
Etymology:
= Orthopleurosaurus microscopicus (FRITSCH, 1883) LYDEKKER, 1890Holotype: CGH 45
Locality: Tremosna, Czech Republic.
Horizon:
Biostratigraphy:
Age: Middle Pennsylvanian.
Material: Trunk, rear limbs and tail.
Galvanotyep:
CGH 233: Skeleton.
Electrotype:
BMNH R349: Anterior portion of a skeleton.