The Deinonychosauria (meaning "fearsome claw lizards") were a successful clade of theropods that lived during the Late Jurassic and Cretaceous Periods. These carnivores are known for their switchblade-like second toes. The clade has been divided into two further clades — Dromaeosauridae and Troodontidae. Dromaeosauridae includes some of the most fearsome killers of the Cretaceous Period: Deinonychus, Velociraptor, and Utahraptor. The largest known of these was possibly Utahraptor, and Microraptor was among the smallest (40 cm or 16 in).
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- Deinonychosauria
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| - Les dromæosauridés comptent différents types de prédateurs au Crétacé comme Dromaeosaurus, Deinonychus ou Velociraptor. Ils étaient spécialisés : si le massif Utahraptor pouvait s'en prendre à de grosses proies, Microraptor, d'une quarantaine de centimètres, chassait probablement surtout des lézards, des mammifères et des insectes. Les griffes rétractiles pouvaient servir à blesser et affaiblir de grandes proies ou bien simplement gratter le sol pour déterrer des pontes d'autres dinosaures, des mammifères, des tortues ou des amphibiens.
- The Deinonychosauria (meaning "fearsome claw lizards") were a successful clade of theropods that lived during the Late Jurassic and Cretaceous Periods. These carnivores are known for their switchblade-like second toes. The clade has been divided into two further clades — Dromaeosauridae and Troodontidae. Dromaeosauridae includes some of the most fearsome killers of the Cretaceous Period: Deinonychus, Velociraptor, and Utahraptor. The largest known of these was possibly Utahraptor, and Microraptor was among the smallest (40 cm or 16 in).
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| - * Dromaeosauridae
* Troodontidae
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| - (Colbert & Russell, 1969)
- Deinonychosauria
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| - Deinonychus skeleton at the Field Museum.
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| - The Deinonychosauria (meaning "fearsome claw lizards") were a successful clade of theropods that lived during the Late Jurassic and Cretaceous Periods. These carnivores are known for their switchblade-like second toes. The clade has been divided into two further clades — Dromaeosauridae and Troodontidae. Dromaeosauridae includes some of the most fearsome killers of the Cretaceous Period: Deinonychus, Velociraptor, and Utahraptor. The largest known of these was possibly Utahraptor, and Microraptor was among the smallest (40 cm or 16 in). Troodontids date from the late Cretaceous Period and were lighter and slimmer than the dromaeosaurids. Some of these were Troodon and Saurornithoides. By some definitions, Deinonychosauria and Dromaeosauridae are synonyms. Some scientist believe that birds are members of the Infraorder Deinonychosauria.
- Les dromæosauridés comptent différents types de prédateurs au Crétacé comme Dromaeosaurus, Deinonychus ou Velociraptor. Ils étaient spécialisés : si le massif Utahraptor pouvait s'en prendre à de grosses proies, Microraptor, d'une quarantaine de centimètres, chassait probablement surtout des lézards, des mammifères et des insectes. Les griffes rétractiles pouvaient servir à blesser et affaiblir de grandes proies ou bien simplement gratter le sol pour déterrer des pontes d'autres dinosaures, des mammifères, des tortues ou des amphibiens. Les troodontidés, eux, datent du Crétacé supérieur, et étaient plus légers et plus petits que les dromaeosauridés. Les plus connus sont Troödon et Saurornithoides.Selon certaines définitions, Deinonychosauria et Dromaeosauridae sont synonymes. Catégorie:Animalia Catégorie:Chordata Catégorie:Sauropsida Catégorie:Dinosauria Catégorie:Saurischia Catégorie:Theropoda Catégorie:Coelurosauria Catégorie:Maniraptora
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