Eustreptospondylus

Name: Eustreptospondylus‭ (‬Well curved vertebra‭).
Phonetic: Yoo-strep-to-spon-di-lus.
Named By: Alick Walker‭ ‬-‭ ‬1964.
Classification: Chordata,‭ ‬Reptilia,‭ ‬Dinosauria,‭ ‬Saurischia,‭ ‬Theropoda,‭ ‬Megalosauridae.
Species: E.‭ ‬oxoniensis (type).
Diet: Carnivore.
Size: Holotype about 4.6‭ ‬meters long, possibly up to 6 meters long for adults.
Known locations: England.
Time period: Callovian of the Jurassic.
Fossil representation: Single specimen,‭ ‬possibly of a juvenile.‭

       Eustreptospondylus was first described in‭ ‬1841,‭ ‬but the original fossil material has since been lost.‭ ‬A second set of remains was discovered in‭ ‬1964‭ ‬and is surmised to be Eustreptospondylus based upon the description of the original material.‭ ‬The new material features vertebra that are lacking development of the upper parts,‭ ‬indicating that it was a juvenile when it died.‭ ‬Comparison to fossil material from other theropods suggests a potential adult size of up‭ ‬to nine‭ ‬meters.
       It has been suggested that there are only minor differences between the hips of Eustreptospondylus and another theropod dinosaur called Magnosaurus,‭ ‬and as such are the same genus.‭ ‬Further support for this comes from similarity in the dentary of the two dinosaurs,‭ ‬however wider consensus at the time of writing is‭ ‬that they are not the same and‭ ‬they both represent their individual groups.

Further reading
- The anatomy and systematics of Eustreptospondylus oxoniensis, a theropod dinosaur from the Middle Jurassic of Oxfordshire, England. - Monograph of the Palaeontological Society, 160(627) 82 pp - R. Sadleir, P. M. Barrett & H. P. Powell - 2008.



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