Genus: Iguanodon non MANTELL, 1825

Cetiosaurus brachyurus OWEN, 1842 (nomen dubium) Note: Upchruch & Martin refere this species to Iguanodon, but did not specifiy which species.
Etymology: Greek, brachys, "short", and ura, "tail."

Holotype:

Locality: Tetham, Sussex County, England, Southern United Kingdom.

Horizon: Wealden Formation.

Biostratigraphy:

Age: Early Cretaceous.

Material:

NHMUK (old BMNH) 2109: Centrum and base of the neural arch of a vertebra apparently referable to the anterior part of the caudal region.

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Species: orientalis ROZHDEVSKY, 1952
Etymology: Laitn, orientalis, "eastern or from the east."

Holotype: PIN 559-1/1, 559-1/2, 559-1/3, 559-1/7.

Locality: Khamarin-Khural, 30 kilometers due South of Buyant-Ukhaa, in Dornogov’ Eastern Gobi Province, Mongolia.

Horizon: Dzuun Bayan Svita, = Ondai Sair Formation/Oshih Formation.

Biostratigraphy:

Age: Barremian/Aptian Stage, Gallic Subepoch, Early Cretaceous Epoch, Early Cretaceous.

Material: Right maxilla, left scapula, several rib fragments, vertebral neural arch fragments, portion of right posterior premaxillary ramus, distal metatarsal fragment, partial right nasal.

A, B) Maxilla; C) Scapula.

Break down:

PIN 559-1/1: Right maxilla.

PIN 559-1/2: Scapula.

PIN 559-1/3:

PIN 559-1/7: Nasal, premaxilla fragment, portions of 2 quite well-preserved dorsal ribs are among numerous other fragments, a distal fragment, unremarkable, and typical in form of that of ornithopod ornithischians generally.

Referred material:

TAQUET, 1992

Locality: Khren Duk, Mongolia.

Horizon:

Biostratigraphy:

Age: Early Cretaceous.

Material:

Number: Not given: Front limb and other parts of the skeleton.

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Species: ottingeri GALTON & JENSEN, 1979 (nomen dubium)
Etymology: In honor of Mr. Lin Ottinger who collected the holotype in 1968.

Holotype: BYU 2000

Locality: BYU 7510, North of Arches National Park boundary 3.22 km. 1.2 km east of Dalton Well south of U. S. 160 in section 22, T24S, R20E, Dalton Wells Quarry, Grand County, Southeastern Utah.

Horizon: Member? ?Basal Cedar Mountain Formation.

Biostratigraphy:

Age: Age?, Aptian Stage, Lower Gallic Subepoch, Early Cretaceous Epoch, Early Cretaceous.

Material: Posterior part of right maxilla with teeth.

Referred material:

KIRKLAND, BRITT, BURGE, CARPENTER, CIFELLI, DECOURTEN, EATON, HASIOTIS & LAWTON, 1997

Locality: Gaston Quarry west of the Yellow Cat Road, NE ¼, SE ¼, NE ¼, SW ¼, sec. 35, T22s, R21E on the Mollie Hogans, Utah.

Horizon: Yellow Cat Member, Cedar Mountain Formation.

Biostratigraphy:

Age: Buffalogapian age, Barremian Stage, Lower Gallic Subepoch, Early Cretaceous Epoch, Early Cretaceous.

Material:

Number: Not given:

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