Describer

Carpenter & Ishida 2010

Time

Cretaceous Early Valanginian

Classification

Ornithischia Ornithopoda Iguanodontia Iguanodontidae

Diet

Herbivore

Fossilsite

Wadhurst Formation, East Sussex, England

Fall Under

Hypselospinus fittoni

Info

Skull 3 partial skulls and jaws.

Hypselospinus fittoni (Norman 2010) > Wadhurstia fittoni (Carpenter & Ishida 2010) > Iguanodon fittoni (Lydekker, 1889) >> Iguanodon hollingtoniensis (Lydekker, 1889)



Carpenter & Ishida (2010) Early and “Middle” Cretaceous Iguanodonts in Time and Space Journal of Iberian Geology 36 (2) 145-164

Wadhurstia fittoni n.g. (Lydekker, 1889a) = Iguanodon fittoni Lydekker, 1889a

Type Locality

Shornden, East Sussex Horizon: Wadhurst Clay, Hastings Beds Group (Allen, 1960).

Age

lower Valanginian (Allen and Wimbledon 1991)

Etymology

For the Wadhurst Formation, which produced the holotype.

Holotype

BMNH R 1635a-d left ilium, sacrum, caudal vertebrae, and possibly teeth (Lydekker 1890b: 261).

Diagnosis

Ilium very deep, anteroposteriorly short, lateral surface concave, very wide brevis shelf medially, no medial ridge on preacetabular process, nor lateral iliac crest; suprailiac notch posteriorly placed on the postacetabular process, distal end of process abruptly truncated.

Comments

Originally named Iguanodon fittoni, the holotype ilium differs significantly from that of Iguanodon bernissartensis and warrants its own genus. The distinctiveness of the ilium has been commented upon by Lydekker (1889a; 1890a), who noted similarities with Camptosaurus; Norman (1987) and Blows (1998) also noted it represented a valid species of Iguanodon, but Galton independent of us, also concluded that the specimen should not be referred to that genus. Although incomplete, the preacetabular process is long and tapering. The ischial peduncle is expanded onto the lateral surface.