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2010 | 55 | 1 |
Tytuł artykułu

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

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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.
Wydawca
-
Rocznik
Tom
55
Numer
1
Opis fizyczny
p.35-42,fig.,ref.
Twórcy
  • Department of Earth Science, University of Cambridge, Downing Street, Cambridge, UK, CB2 3EQ
autor
Bibliografia
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Typ dokumentu
Bibliografia
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