Genus: Hypselospinus NORMAN, 2010
Etymology: Greek, hypselos, "high/tall," and Latin, spina, "backbone"; in reference to the singularly slender and elongate neural spines found on the dorsal, sacral, and caudal vertebrae.
= Darwinsaurus PAUL, 2011
Etymology: In recognation of Darwin's theory, whith the diverse iguandonts standing as an example of complex evoution via rapid speciation, And Greek, sauros, "lizard."
= Wadhurstia CARPENTER & ISHIDA, 2010
Etymology: In reference to the Wadhurst Clay, Hastings Beds Group.

Species: fittoni (LYDEKKER, 1889) NORMAN, 2010
= Iguanodon fittoni LYDEKER, 1889
Etymology: In honor of William Henery Fitton (1780-1861).
= Wadhurstia fittoni (LYDEKKER, 1889) CARPENTER & ISHIDA, 2010
= Huxleysaurus fittoni (LYDEKKER, 1889) PAUL, 2011

Holotype: NHMUK (BMNH) R1635

Locality: Shorden Quarry in the Village of Shornden, near Hastings, East Sussex County, England, Southern United Kingdom.

Horizon: Wadhurst Clay Formation, Hastings sub-group, Lower Wealden Group.

Biostratigraphy:

Age: Lower Valanginian Stage, Middle Neocomian Subepoch, Lower Early Cretaceous Epoch, Early Cretaceous.

Material: Left ilium

NHMUK (BMNH) R1635a: Fragmentary pubis.

NHMUK (BMNH) R1635b: Fragmentary sacrum.

NHMUK (BMNH) R1635c: Caudal centrum.

NHMUK (BMNH) R1635d: Fragmentary upper teeth.

Referred material:

BENTON & SPENCER, 1995

Locality: Hare Farm Lane, Brede, (TQ 83141844), East Sussex County, England, Southern United Kingdom.

Horizon: Basal Wadhurst Clay, Lower Wealden Formation.

Biostratigraphy:

Age: Lower Valanginian Stage, Middle Neocomian Subepoch, Lower Early Cretaceous Epoch, Early Cretaceous.

Material:

NHMUK (BMNH) R1627: A partial pelvis, several dorsal and caudal vertebrae, a partial hind limb and other elements.

 

LYDEKKER, 1890

Locality: Hastings, East Sussex County, England, Southern United Kingdom.

Horizon: Wadhurst Clay, Lower Wealden Formation.

Biostratigraphy:

Age: Lower Valanginian Stage, Middle Neocomian Subepoch, Lower Early Cretaceous Epoch, Early Cretaceous.

Material:

NHUMK (old BMNH): Right ilium, pubis, left femur, and several more or less imperfect vertebrae.

 

= Darwinsaurus evolutionis PAUL, 2011
Etymology: In recognation of Darwin's theory, whith the diverse iguandonts standing as an example of complex evoution via rapid speciation.

Holotype: NHMUK R1831/1833/1835/1836

Locality: Shorden Quarry in the Village of Shornden, near Hastings, East Sussex County, England, Southern United Kingdom.

Horizon: Wadhurst Clay Formation, Hastings sub-group, Lower Wealden Group.

Biostratigraphy:

Age: Lower Valanginian Stage, Middle Neocomian Subepoch, Lower Early Cretaceous Epoch, Early Cretaceous.

Material: Fragmentary skull and fragmentary skeleton.

Breakdonw as follows.

NHMUK R 1831 (1832) Right radius, Ulna, pollex and partial carpus.

NHMUK R 1831 (1833): Pedal unguals, pubis,

NHMUK R 1831 (1835): Sternal apparatus.

NHMUK R 1836: A partial skeleton.

Note: NORMAN, 2014 referrs this speicmen to Mantellisaurus atherfieldensis.