Genus: Cyclotosaurus FRAAS, 1889
Etymology:
= Hemprichisaurus KUHN, 1939
Etymology:
= ?Hercynosaurus JAEKEL, 1914
Etymology:

Species: robustus (QUENSTEDT, 1850) FRAAS, 1889
Etymology: Latin, robustus, "robust, strong."
= Mastodonsaurus robustus QUENSTEDT, 1850
= Capitosaurus robustus (QUENSTEDT, 1850) MEYER & PLIENGER, 1844

Lectotype: GPIT 27-1

Locality: Sandstone quarry in Feuerbacher Haide just north of Stuttgart, northern Baden-Wurttemberg State, southwestern Germany.

Horizon: Schilfsandstein, the middle member of the Hauptkeuper, or Middle Keuper.

Biostratigraphy:

Age: Carnian Stage, Early Late Triassic Epoch, Late Triassic.

Material: Skull.

Referred material:

SMNS 4139, 4935, 5775, GPIT 27-1 – 27-16, 1801-1802, 1804: Skulls.


CORROY, 1928

Locality: Rauax, Lorraine, France.

Horizon: Muschelkalk.

Biostratigraphy:

Age: Mid Triassic Epoch, Middle Triassic.

Material:

Number: Not given: Clavicle.


Locality: Mont-sur-Meurthe Department, France.

Horizon: Muschelkalk.

Biostratigraphy:

Age: Mid Triassic Epoch, Middle Triassic.

Material:

Number: Not given: Tooth.

 

LYDEKKER, 1890

Locality: Feuerbach-Haide, near Stuttgart, Baden-Wurttemberg State, Germany.

Horizon: Middle Keuper.

Biostratigraphy:

Age: Middle Triassic.

Material:

BMNH 37993: Cast of a slab showing the inner lamina of the bones of the cranial roof.

BMNH 37992: Cast of slab showing the palatal aspect of the skull.

BMNH R1439: Cast of slab showing the frontal aspect of muzzle.

BMNH R1439a: Cast of slab showing palatal aspect of the anterior portion of skull.

BMNH R1439b: Cast of slab showing the oral surface of the mandibular symphsis.

BMNH R1439c: Cast of slab with the ventral surface of part of the mandible.

BMNH 33074: Fragmentary skull.

BMNH 14675: Throacic plate.

BMNH 14676, BMNH 15271, BMNH R281: Fragmentary thoracic plates.

BMNH R84: Thoracic plate?

BMNH 43636: Imperfect sculptured bone.

BMNH 14675, BMNH 33073: Sculptured bones.

 

PATON, 1975

Locality: Stuttgart, Baden-Wurttemberg State, Germany.

Horizon: Upper Keuper.

Biostratigraphy:

Age: Carnian Stage, Lower Late Triassic Epoch, Late Triassic.

Material:

RSM: 2 clavicles and 1 interclavicle.

 


ZITTEL, 1890

Locality:

Horizon:

Biostratigraphy:

Age:

Material:

Number: Not given: Fragmentary skull.

 

= Mastodonsaurus? robustus STEPHENS, 1886-1887/FLETCHER, 1971

Australian Museum, Sydney.

Locality: Cockatoe Island, Port Jackson, Sydney, New South Wales State, Australia.

Horizon:

Biostratigraphy:

Age: Triassic.

Material:


= Mastodonsaurus cyclotis QUENSTEDT, 1850
Etymology:

Holotype:

Locality:

Horizon:

Biostratigraphy:

Age:

Material:

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Species: posthumus FRAAS, 1913
Etymology:

Holotype: SMNS 12988

Locality: Sandstone quarry (Weißer Steinbruch), south of Pfaffenhofen, northern Baden-Wurttemberg State, Stormberg, southwestern Germany.

Horizon: Middle Stubensandstein, km4, Upper Middle Keuper.

Biostratigraphy:

Age: Lower Norian Stage, Lower Mid Triassic Epoch, Middle Triassic.

Material: Fragmentary skull and fragmentary skeleton.

Referred material:

Locality: Lippe region of Nordhrein-Westfalen, Germany.

Horizon: Rhaetic.

Biostratigraphy:

Age: Rhaetian Stage, Uppermost Late Triassic Epoch, Late Triassic.

Material:

Number: Not given: Skull and interclavicle.

 

CORROY, 1928

Locality: Ruaux, Lorraine, France.

Horizon: Muschelkalk.

Biostratigraphy:

Age: Mid Triassic Epoch, Middle Triassic.

Material:

Number: Not given: Clavicle.

 

aff posthumus KUHN, 1938

Locality: Halberstadt, Sachsen-Anhalt State, Germany.

Horizon: Keuper Formation.

Biostratigraphy:

Age: Late Triassic.

Material:

Number: Not given: Fragment of skull.

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Species: mordax FRAAS, 1913
Etymology: Latin, mordax, "biting."

Holotype: SMNS 13014

Locality: Sandstone quarry (Weißer Steinbruch), between Pfaffenhofen and Ochsenbach and quarry at Magstadt near Sindelfingen, northern Baden-Wurttemberg State, Stormberg, southwestern Germany.

Horizon: Middle Stubensandstein, km4, Upper Middle Keuper.

Biostratigraphy:

Age: Lower Norian Stage, Lower Mid Triassic Epoch, Middle Triassic.

Material: Fragmentary skull.

SMNS 50008, 50009, 50059, 50063, 51102, 55112, 51435 Skulls.

Referred material:

CORROY, 1928

Locality: Ruaux, Lorraine, France.

Horizon: Lower Muschelkalk.

Biostratigraphy:

Age: Anisian Stage, Lower Mid Triassic Epoch, Middle Triassic.

Material:

Number: Not given: Clavicle.

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Species: papilio WEPFER, 1923 (nomen vanum)
Etymology:

Holotype: GIF uncatalogued.

Locality: A sandstone quarry west of Heckfeld, western Baden-Wurttemburg State, southern Germany.

Horizon: Glaukonitkalk, Upper Muschelkalk or Lower Lettnkohle.

Biostratigraphy:

Age: Upper Ladinian Stage, Upper Mid Triassic Epoch, Middle Triassic.

Material: Posterior portion of skull.
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Species: ebrachensis KUHN, 1932
Etymology: In reference to Ebrach, Franken, Bayern (Bavaria) State, Germany.

Holotype: Bayerische Staatssammlung für Paläontologie und Historische Geologie, Munich.

Note: Destroyed during WWII (DAMIANI, 2001)

Locality: Km3, Quarry south of Ebrach, Franken, Bayern (Bavaria) State, Germany.

Horizon: Level 5 of Kuhn's section 2.8 m above the base, in the Blasensandstein, Middle Keuper.

Biostratigraphy:

Age: Carnian Stage, Early Late Triassic, Late Triassic.

Material: Skull.
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Species: hemprichi KUHN, 1942
Etymology:
= Paracyclotosaurus hemprichi (KUHN, 1942) KUHN, 1960

Holotype: Städtischen Museum of Halberstadt, uncatalogued.

Locality: Barecke's (Formerly Heine's) clay quarry on the east edge of Halberstadt, Sachsen-Anhalt State, northeastern Germany.

Horizon: Upper Keuper Knollenmergel, km5, Middle Keuper, deepest part of the quarry.

Biostratigraphy:

Age: Upper Norian Stage, Middle Triassic Epoch, Middle Triassic.

Material: Skull.

Syntypes: MB Am 570, 572, 573, 577:

Referred material:

KUHN, 1942

Skull, clavicle, ribs, vertebrae and fragments of limbs.

 

= ?Hercynosaurus carinidens JAEKEL, 1914
Etymology:
= ?Cyclotosaurus carinidens (JAEKEL, 1914) ROMER, 1947

Holotype:

Locality: Halberstadt, Sachsen-Anhalt State, Germany.

Horizon: Keuper.

Biostratigraphy:

Age: Late Triassic.

Material: Tooth, 2 centra and ribs.

Referred material:

KUHN, 1942

Locality: Halberstadt, Sachsen-Anhalt State, Germany.

Horizon: Keuper.

Biostratigraphy:

Age: Late Triassic.

Material:

Number: Not given:


= Hemprichisaurus keuperinus KUHN, 1939
Etymology:

Holotype:

Locality:

Horizon:

Biostratigraphy:

Age:

Material:

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Species: intermedius SUEJ & MAJER, 2005
Etymology: The species name was chosen in order to emphasize that it is intermediate between the older Cyclotosaurus robustus MEYER & PLIENINGER, 1844 and younger C. mordax FRAAS, 1913

Holotype: ZPAL Ab III 1173

Locality: Krasiejow, Opole Silesia, Silesia Province, Poland.

Horizon: Probably Drawno beds coeval to the Lehrberg Beds of Germany.

Biostratigraphy:

Age: Late Carnian Stage, Lower Late Triassic Epoch, Late Triassic.

Material: Skull and mandible.

Referred material:

ZPAL AB III 471/8, 19, 31, 45, 113, 472/28, AB III 680: Skulls and mandibles.

ZPAL AB III 887/3: Right humerus.

ZPAL AB III 471/51: Right cleithrum.

ZPAL AB III 397: Right clavicle.

ZPAL Ab III 887/1: Interclavicle.

ZPAL Ab III 887/2: Scapulacoracoid.

ZPAL Ab III 471/51: Cleithrum.

 

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 Species: buechneri WITZMANN, SACHS, & NYHUIS, 2016
Etymology: In honor of Dr. Martin, Bchner former director of the Museum of Natural History in Bielefeld. Martin Bchner discovered the holotype and only known speciimen in 1976, and has a life-long record of outstanding contributions to the museum's geological collectioni and the popularization of geosciences in the region.
= Cyclotosaurus robustus SCHOCH & MILNER, 2000

Holotype: Namu ES/k 36053

 Locality: Bielefeld, Sieker District, North Rhine-Westphalia State, Northwestern Germany.

Horizon: Stuttgart Formation.

Biostratigraphy:

Age: Middle Carnian Stage, Lower Late Triassic Epoch, Late Triassic.

Material: Almost complete skull.

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 Species: naraserluki MARZOLA, MATEUS, SHUBIN & CLEMENSEN, 2017
Etymology: Greenlandic, naraserluk, "amphibian, salamander."

Holotype: MGUH.VP 9522

Locality: Macknight Bjerg Quarry, 71°22.30'N, 22°33.14'W, Jameson Land, East Greenland.

Horizon: Carlsberg Fjord Beds, Ørsted Dal Member, Fleming Fjord Formation.

Biostratigraphy:

Age: Norian Stage, Late Triassic Epoch, Late Triassic.

Material: Nearly complete skull.

Referred material:

MGUH.VP 9523, MGUH.VP9524 (perviously V-2012-268 and V.2-12-269): 2 vertebral intercentra.