Genus: Dinosaurus FISCHER, 1847
Etymology:
= Phthinosuchus EFREMOV, 1954
Etymology: Greek, Phthino, waste, decline, wane, Greek, soukhos, Crocodile: Declining crocodile.
= Rhopalodon SEELEY, 1894
Etymology:

Species: murchisoni FISCHER, 1847
Etymology:
= Rhopalodon murchisoni PAND, 1898
Etymology:

Holotype: PIN 296/1

Locality: Klyuchevskii Rudnik-1 locality, Sterlibashevskii District, Klyuchevskoi Copper Mine, Bashkortostan Region, European Russia.

Horizon:

Biostratigraphy:

Age: Lower Tatarian Age, (Upper Kazansky?) Capitanian Stage, Middle Zechstein Epoch, Late Middle Permian.

Material: Fragmentary skull.

Referred material:

= Phthinosuchus discors EFREMOV, 1954
Etymology:
= Rhapalodon sp SEELEY, 1894
= Rhopalodon fischeri WATSON, 1921

Holotype: PIN 1954/3

Locality: Uralian Cupric Sandstones, Demsky mine (Kliochevsky or Durasovsky mine? BRINK, 1986) Bashkiry, Western Cisuraly, European Russia.

Horizon:

Biostratigraphy:

Age: Lower Tatarian Age, (Upper Kazansky?) Capitanian Stage, Middle Zechstein Epoch, Late Middle Permian.

Material: Distal end of skull and dentary.

Referred material:

LGM.ChMP no. 3: Fragmentary skull and dentary.