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Baryonyx (/ ˌ b ær i ˈ ɒ n ɪ k s /) is a genus of theropod dinosaur which lived in the Barremian stage of the Early Cretaceous period, about 130–125 million years ago.The first skeleton was discovered in 1983 in the Smokejack Clay Pit, of Surrey, England, in sediments of the Weald Clay Formation, and became the holotype specimen of Baryonyx walkeri, named by palaeontologists Alan J ...
Baryonychinae is an extinct clade or subfamily of spinosaurids from the Early Cretaceous of Europe and West Africa.The clade was named by Charig & Milner in 1986 and defined by Sereno et al. in 1998 and Holtz et al. in 2004 as all taxa more closely related to Baryonyx walkeri than to Spinosaurus aegyptiacus.
Skeletal diagrams of Acrocanthosaurus atokensis specimens. The holotype is the topmost image, while the second image from the top is the paratype ... Baryonyx walkeri ...
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Skeletal diagram combining several specimens (above), compared with the closely related genus Baryonyx The describers established some autapomorphies (unique derived traits) of Suchomimus to separate it from other theropods, including the expanded rear dorsal, sacral, and front caudal neural spines, the robust upper corners of the humerus, and ...
After being described as a specimen of Baryonyx in 2011, [3] it was realised to have been a unique species in 2019, with specimen ML1190 as the holotype. [4] Additional material was discovered in a June 2020 expedition, after which Iberospinus was described as a new genus and species in 2022 by Octávio Mateus and Darío Estraviz-López. [2]
The type and only species is Protathlitis cinctorrensis, known from a partial skeleton. It was a basal member of the Baryonychinae . [ 1 ] Its discovery, as well as those of the spinosaurids Camarillasaurus , Iberospinus , Riojavenatrix , and the contemporary Vallibonavenatrix shows that the Iberian Peninsula held a diverse assemblage of ...
Diagram by Dan Folkes showing known material of Riparovenator (front) and Ceratosuchops (rear) Between 2013 and 2017, spinosaurid fossils were uncovered at the beach near the Chilton Chine before being brought to Dinosaur Isle. Such remains had historically been referred to Baryonyx but were understood later to represent two new species. [1]