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Dinosaurs B

BECKLESPINAX altispinax
   
DESCRIBER Paul,1988
TIME Cretaceous Early  
Barremian
CLASSIFICATION Saurischia Theropoda Carnosauria Sinraptoridae  
DIET Carnivore
FOSSILSITE Wealden Beds; Wealden of Battle, East Sussex, England
FALL UNDER BECKLESPINAX
LENGTH
INFO Becklespinax > B.altispinax (Paul,1988) >> Acrocanthosaurus altispinax (Paul,1988)

The three dorsals from Battle, England. As presently regognized, Becklespinax altispinax consists of an articulated series of three vertebrae from the caudal region of the dorsal series. Originally figured by Owen (1884), this specimen comes from the Wealden of Battle, England. 

The neural spines of these vertebrae are elongate, five times as high as the centra. They bear no particular similarity to the dorsals of Spinosaurus aegyptiacus to which they often have been compared: in that species, the spines are craniocaudally dilated just dorsal to the arches, while in Becklespinax, thay are constricted just above the arches. 

The centra phylogenetic position, although they de represent a valid taxon and are not referable to the better-known Baryonyx walkeri (Charig & Milner,1986). Two referred isolated metatarsals described as II and Iv (Lydekker,1889) seemingly represent two fourth metatarsals, of similar diameter but different length. They presumably do not both pertain to the same species and do not demonstrably pertain to Becklespinax altispinax.

 

 

 

 

 

 

 

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