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HYPSELOSPINUS

a plant-eating styracosternan iguanodont dinosaur from the Early Cretaceous of England.
hypselospinus.png
Pronunciation: HIP-sel-o-SPIEN-us
Meaning: Tall spined
Author/s: Norman (2010)
Synonyms: Iguanodon fittoni
First Discovery: East Sussex, England
Chart Position: 567

Hypselospinus fittoni

Iguanodon fittoni was coined by Richard Lydekker in 1889 for remains from the Wadhurst Clay Formation of East Sussex, England, but it's validity was called into doubt after Belgium's Iguanodon bernissartensis ousted Iguanodon anglicus as the official Iguanodon mascot and name-bearer in 2000.

Soon after, it became apparent that many so-called Iguanodon species actually belonged elsewhere instead, and as part of the ensuing clean-up job this gracile styracosternan and the name-prompting long, narrow, and steeply inclined spines protruding from its vertebrae were renamed Hypselospinus by David Norman in 2010.

Hypselospinus shared its time and place with the much more robust Iguanodon dawsoni which, as it turns out, wasn't much Iguanodon-like either. Nor was it like Hypselospinus, so its "heavy ilium" and large Camptosaurus-like vertebrae with short spines were also Norman-ised and given their own name — Barilium — in 2010.

In a bizarre turn of events, a second team of scientists managed to study these same remains during the same year without getting wind of Norman's work and renamed Iguanodon fittoni and Iguanodon dawsoni themselves. Unfortunately, they were a little too late to the printers, so their "Wadhurstia" and "Torilion" were immediately chalked off as junior synonyms of Hypselospinus and Barilium respectively.
(Fittoni's tall-spined one)Etymology
Hypselospinus is derived the Greek "hypselos" (high, tall) and the Latin "spina" (thorn), which refers to its high spines. The species epithet, fittoni, honors Irish geologist William Henry Fitton.
Estimations
Timeline:
Era: Mesozoic
Epoch: Early Cretaceous
Stage: Valanginian
Age range: 140-136 mya
Stats:
Est. max. length: 6 meters
Est. max. hip height: ?
Est. max. weight: 800 Kg
Diet: Herbivore
Synonyms
Iguanodon Fittoni (Lydekker, 1889)
Wadhurstia (Carpenter and Ishida, 2010)
References
• Lydekker R (1889) "On the remains and affinities of five genera of Mesozoic reptiles". Quarterly Journal of the Geological Society of London 45: 41–59.
• Blows WT (1997) "A review of Lower and middle Cretaceous dinosaurs from England". In Lucas, Kirkland and Estep (eds.) "Lower and Middle Cretaceous Terrestrial Ecosystems". New Mexico Museum of Natural History and Science Bulletin 14: 29-38.
• Norman DB (2004) "Basal Iguanodontia". In Weishampel, Dodson and Osmólska (eds.) "The Dinosauria: Second Edition". University of California Press.
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To cite this page:
Atkinson, L. "HYPSELOSPINUS :: from DinoChecker's dinosaur archive".
›. Web access: 24th Apr 2017.
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