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Baryonyx
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Baryonyx was a carnivore (meat-eater) that lived in the early
Cretaceous period,
about 125
million years ago,
in
England,
Spain,
and probably elsewhere in
Europe
too.
It was about 20 feet (6.1 meters) long and probably weighed over 2
tons.
Baryonyx is known to have eaten fish as
a fossilized meal containing
fish remains was found in its stomach - and was for a long time the
only known fish-eating dinosaur
(scientists now believe that
Spinosaurus mostly
ate fish too).
Baryonyx was an unusual dinosaur in a several ways:
- It has a very narrow skull, with many small pointed teeth, many
more than its relatives, the other Theropod dinosaurs:
Baryonyx's teeth included 64 teeth in the lower jaw ("mandible") and
32 larger teeth in the upper jaw ("maxilla"). Additionally, the
upper jaw contained a sharp angle near the snout that help to prevent
prey from escaping (a similar feature is founded in crocodiles for this purpose).
- It did not have a flexible neck like other Theropod dinosaurs.
Furthermore, Baryonyx's head was set an acute angle to the neck, rather than
the 90 degree angle found in other dinosaurs.
- A huge curved claw, about 1 foot (30 centimeters) long, was found with the
fossil Baryonyx. It is not
certain if this claw was attached to the front or rear feet. It is possible
that Baryonyx used this claw to hook fish out of water, while hunting on
riverbanks. In any case, Baryonyx was named for this claw, Baryonyx
means "heavy claw".
Baryonyx is known from
fossils
found in southern England and
Spain:
- The first example was discovered by
amateur
fossil-hunter,
William Walker, who, in 1983,
came across an enormous claw sticking out of the side
of a clay pit near Dorking, Surrey in England.
About 70% of the skeleton, including the skull, as well as the fossilized
remains of its last meal inside the rib cage (which is how we know it ate fish),
was recovered from this
find, and this provided a lot of detail to researchers. (This particular
specimen is now located in the
Natural History Museum in
London,
England).
- Subsequently, further Baryonyx fossils were found in Spain.
These principally consisted of a partial skull and some fossil tracks.

Baryonyx was a carnivore (meat-eater) that lived about 125 million years ago

Related Information & Resources
See Also

Baryonyx Facts
Here is a summary of some of the key facts about Baryonyx:
- Baryonyx was a genus of dinosaur.
- "Baryonyx" means "heavy claw" (because of the animal's large claw).
- Baryonyx was a member of the Saurischia ("lizard-hipped") order of dinosaurs. What this means, is that although Baryonyx was not closely related to lizards, it did have similarly shaped pelvic bones.
- Baryonyx was a Theropod - a member of a group of related bipedal dinosaurs that included the ancestors of birds (although Baryonyx was not itself an ancestor of birds).
- Baryonyx lived about 125 million years ago, during the Cretaceous period.
- Baryonyx lived in Europe (fossils have been found in England and Spain).
- Baryonyx was a carnivore (meat-eater).
- Baryonyx's diet is known to have included fish, as fossilized fish remains have been found in its stomach.
- Baryonyx was about 2¼ feet (0.7 meters) in length - although this may be the juvenile size.
- Baryonyx weighed about 4½ pounds (2 kilograms) - although this may be the juvenile weight.
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By Michael P. Goecke
Buddy Books Library Binding (32 pages; 1)
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By Dixon
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Product Description: On what is now a small island off of England, dinosaurs with everything from crocodile-like teeth to huge stomachs lived together. Explore how these dinosaurs lived and died millions of years ago. |
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By Tamara Green
Gareth Stevens Publishing Hardcover (24 pages; 1)
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Books LLC Paperback (58 pages)
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Click Here | Product Description: Purchase includes free access to book updates online and a free trial membership in the publisher's book club where you can select from more than a million books without charge. Chapters: Spinosaurus, Irritator, Baryonyx, Spinosauridae, Suchomimus, Siamosaurus, Suchosaurus, Cristatusaurus, Asiamericana, Sinopliosaurus, Altispinax. Excerpt: Altispinax Altispinax (pronounced / ælt spa n ks/ ; "high spine") was a genus of spinosaurid dinosaur which lived during the early Cretaceous of Europe . The type species , Altispinax dunkeri (Dames, 1884 and von Huene , 1923), is known only from teeth. Other described species have since been moved to other genera, including Baryonyx . Vertebrae initially linked with the teeth are now known to be from the carnosaur Becklespinax . Thus Altispinax is now usually considered a nomen dubium . Websites (URLs online) A hyperlinked version of this chapter is at Asiamericana Fossil range: Cretaceous Asiamericana (AY-zha-MER-i-KAHN-a - (Greek : Asia meaning "Asia" and Latin American meaning "America") was a genus of theropod dinosaur which was named to recognize the occurrence of similar fossil teeth in Central Asia and North America . These regions once formed a connected land mass, during the Cretaceous period and were referred to as Asiamerica . Asiamericana has been tentatively classified with the Spinosauridae . The teeth were discovered by L. A. Nesov in 1995. The findings were based on three teeth found in the central Kyzylkum desert , Uzbekistan , comparable to other teeth found in Kazakhstan and North America, which have been illustrated but not formally described. The type species is A. asiatica . Classification issues Nesov himself has cautioned that these unusual teeth may belong to saurodont fish rather than to dinosaurs . References (URLs online) A hyperlinked version of this chapter is at Baryonyx Fossil range: Early Cretaceous , 130 125 Ma Pre O S D C P T J K Pg N item Baryonyx skeleton at the Natural History Museum in L... |
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Books LLC Paperback (116 pages)
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Click Here | Product Description: Les achats comprennent une adhésion à l'essai gratuite au club de livres de l'éditeur, dans lequel vous pouvez choisir parmi plus d'un million d'ouvrages, sans frais. Le livre consiste d'articles Wikipedia sur : Archaeopteryx, Stegosaurus, Baryonyx, Dinosaures En France, Brachiosaurus, Allosaurus, Diplodocidae, Ampelosaurus, Ceratosaurus, Agnosphitys, Camptosaurus, Aragosaurus, Eotyrannus, Echinodon, Zalmoxes, Tarascosaure, Agrosaurus, Amygdalodon, Altispinax, Amurosaurus, Acanthopholis, Alocodon, Aepisaurus, Aristosuchus, Yaverlandia, Aviatyrannis, Dubreuillosaurus, Albisaurus, Piveteausaurus, Euronychodon, Cetiosauriscus, Variraptor. Non illustré. Mises à jour gratuites en ligne. Extrait : Les archæoptéryx ou archéoptéryx (Archaeopteryx) forment un genre d'animaux disparus, considérés comme les oiseaux les plus anciens connus. Ces animaux tropicaux, d'une longueur inférieure à 60 cm, ont vécu à la fin du Jurassique, il y a 156 à 150 Ma dans un environnement alors insulaire, qui se situe actuellement en Allemagne. Les découvertes d'archéoptéryx ont largement contribué à l'affirmation de la théorie la plus courante de l'histoire évolutive des oiseaux à savoir que les oiseaux descendent des dinosaures de l'ordre des théropodes. Tailles comparées des spécimens d'archéoptéryx. Squelette complet, reconstitution De gauche à droite, les bassins de :-Coelophysis ---Allosaurus ---Velociraptor ---Archaeopteryx ---Columba Pattes avant de Maniraptorien typique, un Deinonychus (à gauche) et un Archaeopteryx (à droite). Plumes rectrices fixées sur les vertèbres de la queue. Détail de la queue Les fossiles trouvés ont la taille d'un pigeon. Spécimen de BerlinLes plumes des archéoptéryx ont été très étudiées, notamment grâce au spécimen bien conservé de Berlin. Cependant, comme nous ne savons pas formellement si tous les fossiles trouvés sont de la même espèce, il importe que chaque étude précise sur quel spécimen elle porte. Les plumes du c...http://booksllc.net/?l=fr |
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By Rupert Matthews
Heinemann Library Paperback (32 pages; 1)
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Describes what has been learned about the size, behavior, and surroundings of the long-extinct dinosaur known as baryonyx.
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By Janet Riehecky
Childs World Library Binding (32 pages)
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By Janet Riehecky
Childs World Library Binding (32 pages; 1)
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Click Here | Product Description: Presents facts and speculations about the physical characteristics and behavior of this fish-eating dinosaur. |
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By Janet Riehecky
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Click Here | Product Description: Kapitel: Archaeopteryx, Baryonyx, Incisivosaurus, Sinosauropteryx, Tyrannosaurus, Daspletosaurus, Tyrannosauroidea, Albertosaurus, Tarbosaurus, Gorgosaurus, Compsognathus, Spinosaurus, Irritator, Alioramus, Citipati, Oviraptor, Caudipteryx, Avimimus, Sinornithosaurus, Oviraptorosauria, Acrocanthosaurus, Therizinosauroidea, Tetanurae, Allosaurus, Neoceratosauria, Gigantoraptor, Nothronychus, Bagaraatan, Australovenator, Caenagnathidae, Therizinosaurus, Nanotyrannus, Dilophosaurus, Ingenia, Chirostenotes, Nomingia, Mononykus, Jeholornis, Spinosauridae, Coelophysis, Nemegtomaia, Albertonykus, Ornitholestes, Protarchaeopteryx, Giganotosaurus, Mapusaurus, Elmisaurus, Coelurosauria, Epidendrosaurus, Alwalkeria, Cryolophosaurus, Juravenator, Eotyrannus, Banji, Genyodectes, Scipionyx, Carnosauria, Hagryphus, Conchoraptor, Eoraptor, Microvenator, Alvarezsauridae, Haplocheirus, Abelisauridae, Coelophysoidea, Coelurus, Carcharodontosaurus, Bahariasaurus, Majungasaurus, Spinosauroidea, Proceratosaurus, Elaphrosaurus, Piatnitzkysaurus, Rinchenia, Pyroraptor, Erlikosaurus, Carcharodontosauridae, Pygostylia, Nanshiungosaurus, Xiongguanlong, Masiakasaurus, Siamosaurus, Khaan, Allosauroidea, Caenagnathasia, Shuvuuia, Similicaudipteryx, Megalosaurus, Liliensternus, Tyrannosauridae, Achillesaurus, Abelisauroidea, Procompsognathus, Aerosteon, Shixinggia, Heyuannia, Beipiaosaurus, Megaraptor, Bistahieversor, Monolophosaurus, Maniraptora, Yangchuanosaurus, Neovenator, Suchomimus, Herrerasaurus, Carnotaurus, Dilophosauridae, Abelisaurus, Aviatyrannis, Tyrannotitan, Mirischia, Dryptosaurus, Saurornitholestes, Epidexipteryx, Deinonychosauria, Megalosauridae, Compsognathidae, Segnosaurus, Coeluriden, Piveteausaurus, Sinraptoridae, Sarcosaurus, Gojirasaurus, Megapnosaurus, Dilong Paradoxus, Eustreptospondylus, Becklespinax, Indosuchus, Gasosaurus, Eocarcharia, Aucasaurus, Allosauridae, Noasauridae, Ligabueino, Altispinax, Afrovenator, Deltadromeus, Avet...http://booksllc.net/?l=de |
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