Dromaeosauridae
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Dromaeosauridae is a family of feathered coelurosaurian theropod dinosaurs. They were generally small to medium-sized feathered carnivores that flourished in the Cretaceous period. The name Dromaeosau
Dromaeosauridae Diversity
Preserved feather traces in a fossil Zhenyuanlong suni
Fossil cast of an extensively feathered Sinornithosaurus specimen
The Thermopolis specimen of Archaeopteryx, which showed that it also had a hyperextendible second toe
Utahraptor
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Utahraptor is a genus of large dromaeosaurid dinosaur that lived during the Early Cretaceous period from around 139 to 135 million years ago in what is now the United States. The genus was described i
Dromaeosauridae
…to medium-sized dinosaurs, ranging from 1.5–2.07 metres (4.9–6.8 ft) in length (in the case of Velociraptor) to approaching or over 6 m (20 ft) (in Utahraptor, Dakotaraptor and Achillobator). Large size appears to have evolved at least twice among dromaeosaurids; once among the dromaeosaurines Utahraptor and…
BYU Utahraptor skeletal mount
Premaxilla of BYU 7510 14585
Pedal ungual II of CEUM 184v.294, housed at the Prehistoric Museum, USU Eastern.
Reconstructed hindlimb of Utahraptor