Genus: Dicraeosaurus JANENSCH, 1914
Etymology: Greek, dikraios, “bifurcated, double-headed”, and Greek, sauros, “lizard”: “double crested lizard”.
= Dicraeosaurus YADAGIRI, 1988 (sic)
= Dicreaosauurs SWINTON, 1970 (sic)
= Dicreosaurus BORSUK-BIALYNICKA, 1977 (sic)
= Dicraeosoaurus PICHOWSKI & DZIK, 2010
= Dikraeosaurus LULL, 1924 (sic)
= Issasaurus MAIER, 2003 (nomen nudum)
Note: Skeleton m.
= Mtotosaurus MAIER, 2003 (nomen nudum)
Note: Skeleton Q.
= Nyorosaurus MAIER, 2003 (nomen nudum)
Note: Skeleton M.
= Selimanosaurus MAIER, 2003 (nomen nudum)
Note: Skeleton O.

Species: hansemanni JANENSCH, 1914
Etymology:

Holotype: Skeleton m. Humboldt Museum.

Locality: Kindope, Tendaguru, East Africa.

Horizon: Middle Tendaguru Formation.

Biostratigraphy:

Age: Kimmeridgian Stage, Middle Malm Epoch, Late Jurassic.

Material: Atlas, 2nd cervical to 19th caudal vertebrae, ilium, pubis, ischium, femur, tibia, fibula. Articulated.

Referred material:

dd: Premaxilla, maxilla, squamosal, pterygoid, teeth, cervical, dorsal, dorsal, sacrum and caudal vertebrae, ribs, scapula, coracoid(?), ilium, pubis, ischium(?), femur, tibia, fibula, and pes.

dd 429: Right premaxilla.

dd 403: Left premaxilla.

dd 184: Left premaxilla.

dd 42: Right maxilla.

dd 521: Left maxilla.

dd 497: Right squamosal and braincase.

dd 495: Braincase.

dd 520: Left squamosal.

dd 30: Left squamosal.

dd 414: Left lachrymal.

dd 497: Postfrontal and postorbital.

dd 519: Right pterygoid.

Teeth.

Note: Gastroliths were found.

 

JANENSCH, 1961

Locality: Tendaguru, Mtwara, Tanzania, East Africa.

Horizon: Lower Tendaguru Formation.

Biostratigraphy:

Age: Late Jurassic.

Material:

St 53: Humerus.

Q 11: Humerus.

 


Locality: Tendaguru, Mtwara, Tanzania, East Africa.

Horizon: Middle Tendaguru Formation.

Biostratigraphy:

Age: Kimmeridgian Stage, Middle Malm Epoch, Late Jurassic.

Material:

dd 181: Right coracoid.

Sa 27: Ulna.

M 62: Right ilium.

m: Pubis, ischium, astragalus.

m5: Femur.

Q 12: Tibia.

m1: Tibia

m3: Fibula.

dd 213: Metatarsal I, II, III, IV, V, 12 Claw, II 1 phalange, III 3 phalange.

Mt I O 15: Metatarsal I.

St 593: Metatarsal II.

 


Locality: Tendaguru, Mtwara, Tanzania, East Africa.

Horizon: Upper Tendaguru Formation.

Biostratigraphy:

Age: Kimmeridgian Stage, Middle Malm Epoch, Late Jurassic.

Material:

Nr 22: Femur.

 


JANENSCH, 1929

Locality: Tendaguru, Mtwara, Tanzania, East Africa.

Horizon: Tendaguru Formation.

Biostratigraphy:

Age: Late Jurassic.

Material:

dd 514: Poratlas neural spine.

dd511: intercentrum.

dd 512: Right neural spine.

dd 111, 97, 133, 14, dd83, dd88, dd120, dd398: Caudal vertebrae.

dd 86, 118: Distal caudal vertebrae.

dd 495, dd 515, dd516: Hamphophysen.

m: Fragmentary skeleton.

 


Locality: Kindope, NW of Tendaguru, East Africa.

Horizon: Middle Tendaguru Formation.

Biostratigraphy:

Age: Kimmeridgian Stage, Middle Malm Epoch, Late Jurassic.

Material:

dd 53: Epistropheus.

_____________________________________________________________________________________

Species: sattleri JANENSCH, 1914
Etymology:
= Amargasaurus sattleri (JANENSCH, 1914) SALGADO, 1999

Holotype: M

Locality: 1/2 km south of Tendaguru, Tanzania, East Africa.

Horizon: Upper Tendaguru Formation.

Biostratigraphy:

Age: Kimmeridgian Stage, Middle Malm Epoch, Late Jurassic.

Material: Caudal, dorsal vertebrae, sacrum, caudal vertebrae, ribs, ilium, ischium, pubis, chevrons.

Referred material:

M 63: Cervical vertebra.

M 64: Fragmentary cervical vertebra.

M 9, 11, 10, 45, 12, 19, 37: Dorsal vertebrae.

M 17: Caudal vertebra.

M 27, 25, 38, 23: Ribs.

O: Caudal vertebrae and chevrons.

s: 22 Caudal vertebrae.

Ob: Caudal vertebrae.

La: Caudal vertebrae.

GD: Caudal vertebrae.

E: Dorsal vertebrae.

E 13, 14, 15, 17, 27: Fragmentary cervical vertebrae.

E 36, 37, E 4: Dorsal vertebrae.

O 12, Ob 25: Dorsal vertebra.

GD 12, 7, 8, 14: Caudal centra.

La: Caudal vertebra.

s: 24 caudal vertebrae.

 

JANENSCH, 1961

Locality: Tendaguru, Mtwara, Tanzania, East Africa.

Horizon: Upper Tendaguru Formation.

Biostratigraphy:

Age: Kimmeridgian Stage, Middle Malm Epoch, Late Jurassic.

Material:

E 19: Scapula.

O 3: Humerus.

ab 1: Humerus.

O7: Ulna.

P 11: Radius.

G 83: Radius.

M 3: Ilium.

M4: Right ilium.

M 6: Pubis.

M 2: Femur.

O 2: Femur.

O 4: Femur.

O 5: Fibula.

XIV 4: Astragalus.

ab 18: Astragalus.

O 15: Left metatarsal I,.

bb 7: Left metatarsal IV.

O 19: Metatarsal V.