Ischyrosaurus
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Ischyrosaurus Temporal range: Upper Jurassic |
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| Humerus in multiple views | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Sauropsida |
| Superorder: | Dinosauria |
| Order: | Saurischia |
| Suborder: | Sauropodomorpha |
| Infraorder: | Sauropoda |
| Genus: |
Ischyrosaurus Hulke, 1874 |
| Species: |
I. manseli Hulke vide Lydekker, 1888 |
| Binomial name | |
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Ischyrosaurus manseli Hulke vide Lydekker, 1888 |
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"Ischyrosaurus" (meaning "strong lizard", for its large humerus; name in quotation marks because it is preoccupied) was a genus of sauropod dinosaur from the Kimmeridgian-age Upper Jurassic Kimmeridge Clay of Dorset, England. It was once synonymized with the Early Cretaceous-age Pelorosaurus.
"Ischyrosaurus" is based on a partial humerus (NHMUK R41626) found in 1868.John Hulke described it briefly in 1869, then named it in 1874. The genus is preoccupied by a name Edward Drinker Cope coined in 1869.
Like most sauropod remains from the Upper Jurassic-Lower Cretaceous of Europe, it became part of the Pelorosaurus-Ornithopsis taxonomic tangle, being referred first to Ornithopsis as O. manseli, then to Pelorosaurus as P. manseli. Upchurch et al., in their review of sauropods (2004), listed it as a dubious sauropod. A 2010 overview of Late Jurassic sauropods from Dorset noted that Ischyrosaurus shared features seen in both Rebbachisauridae and Titanosauriformes, but lacked features to nail down its exact phylogenetic position.
As a sauropod, it would have been a large quadrupedal herbivore.
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