[D] Baryonyx walkeri [Su] [sG] [T]
Charig & Milner, 1986
Cretaceous Early Barremian
Saurischia Theropoda Tetanurae Spinosauroidae Baryonychidae
Wealden Beds, Smokejacks Pit, Ockley, Surrey, England
Genus - Typespecies - Skull
Partial skull and associated postcranial skeleton. Discovered in the Barremian Wealden Formation, in Surrey, England was a large reasonably complete skeleton of a previously unknown carnivorous dinosaur Baryonyx walkeri in some ways quite unlike other theropods.
The teeth are strongly slightly recurved and rounded, not strongly compressed, in section. The snout is low and elongate, with a spatulate tip.A large manual claw inspired the media-given name ’Claws’. Baryonyx walkeri seems distinct from Becklespinax altispinax as there is no indication that Baryonyx walkeri had elongate dorsal neural spines. According to the Sereno ....Spinosauria Baryonychidae
BMNH R9951 (HoloType) consisting of conjoined premaxillae, conjoined vomers, anterior part of left maxilla, conjoined nasals, left lacrimal, left prefrontal, left postorbital, anterior end of braincase (right frontal, right parietal, right orbitosphenoid, right laterosphenoid) posterior end of braincase together with occiput (both prootic, both opisthotics, basisphenoid, supraoccipital, both exoccipitals, basioccipital) left jugal, both quadrates, both dentaries, both splenial, right surangular, both angulars, right coronoid, some upper teeth and many isolated teeth of unknown position, axis and 4 cervical vertebrae, 12 dorsals, 3 or 4 basal caudals, 3 distal caudals, one axial rib, three cervical ribs, dorsal ribs, abdominal ribs, sternum, both scapulae, both coracoids, both humeri, left radii, left ulna, left pollex with ungual, left digit II or digit III, isolated phalanges of bith sides, right ilium, both pubes, left ischium, proximal end of left femur and distal end of right femur, right fibula, right calcaneum, metatarsal fragments, 1 pedal ungual.
Some theropod specialist think the anatomical differences between the material of Suchomimus tenerensis (Sereno et al. (1998)) and Baryonyx walkeri only warrant recognition of the former as a distinct species of Baryonyx, [Baryonyx tenerensis] and that the generic names \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\"Cristatusaurus and Suchomimus should be considered subjective junior synonyms of Baryonyx