Benson, R. B. J. and Jonathan, D. (2010) A new large−bodied theropod dinosaur from the Middle Jurassic of Warwickshire, United Kingdom. Acta Palaeontologica Polonica, 55 (1). pp. 35-42. ISSN 0567-7920 EISSN: 1732-2421 DOI https://doi.org/10.4202/app.2009.0083
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Abstract
Previously undocumented postcranial material from the Chipping Norton Limestone Formation (Middle Jurassic: Lower Bathonian) of Cross Hands Quarry, near Little Compton, Warwickshire represents a new large−bodied theropod dinosaur,distinct from the contemporaneous Megalosaurus bucklandii. Cruxicheiros newmanorum gen. et sp. nov. is diagnosed by a single autapomorphy, the presence of a proximomedially inclined ridge within the groove that marks the lateral extent of the posterior flange of the femoral caput (trochanteric fossa). C. newmanorum shows three tetanuran features: widely separated cervical zygapophyses, a swollen ridge on the lateral surface of the iliac blade and an anterior spur of the caudal neural spines. However, due to fragmentary preservation its affinities within Tetanurae remain uncertain: phylogenetic analysis places it as the most basal tetanuran, the most basal megalosauroid(=spinosauroid) or the most basal neotetanuran.
Item Type: | Article |
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Uncontrolled Keywords: | 09AREP; IA60; |
Subjects: | 04 - Palaeobiology |
Divisions: | 04 - Palaeobiology |
Journal or Publication Title: | Acta Palaeontologica Polonica |
Volume: | 55 |
Page Range: | pp. 35-42 |
Identification Number: | https://doi.org/10.4202/app.2009.0083 |
Depositing User: | Sarah Humbert |
Date Deposited: | 16 Mar 2010 11:11 |
Last Modified: | 23 Jul 2013 09:56 |
URI: | http://eprints.esc.cam.ac.uk/id/eprint/1342 |
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