A new large-bodied theropod dinosaur from the Middle Jurassic of Warwickshire, United Kingdom

• Autorzy: Benson R.B.J. , Radley J. D.
• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

large-bodied dinosaur; dinosaur; new dinosaur; theropod dinosaur; Middle Jurassic; Jurassic; Warwickshire; United Kingdom; paleontology; Dinosauria; Theropoda; Tetanurae; Megalosaurus; Cruxicheiros; Bathonian; Chipping Norton Limestone Formation

• Wydawca: -
• Czasopismo: Acta Palaeontologica Polonica
• Rocznik: 2010
• Tom: 55
• Numer: 1
• Opis fizyczny: p.35-42,fig.,ref.

Twórcy

autor

Benson R.B.J.

• Department of Earth Science, University of Cambridge, Downing Street, Cambridge, UK, CB2 3EQ

autor

Radley J. D.

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