Utahraptor

E514771

Utahraptor is a large, heavily built dromaeosaurid theropod dinosaur known for its formidable sickle-shaped toe claws and predatory lifestyle during the Early Cretaceous period in what is now North America.

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Statements (45)

Predicate Object
instanceOf dromaeosaurid dinosaur
bodySize large for a dromaeosaurid
clade Dinosauria
class Reptilia NERFINISHED
coexistedWith ankylosaur Gastonia NERFINISHED
ornithopod dinosaurs
countryOfDiscovery United States NERFINISHED
describedBy Donald Burge NERFINISHED
James I. Kirkland NERFINISHED
Robert Gaston NERFINISHED
diet carnivorous
discoveredIn Utah NERFINISHED
ecologicalRole predator
estimatedLength approximately 5–7 meters
estimatedMass approximately 500–1000 kilograms
family Dromaeosauridae NERFINISHED
fossilTypeLocality Gastonia Quarry, Utah NERFINISHED
geologicalPeriod Early Cretaceous
hasAnatomicalFeature grasping forelimbs with claws
large sickle-shaped claw on second toe
robust hindlimbs
sharp serrated teeth
stiffened tail
huntingAdaptation enlarged retractable toe claw
powerful grasping forelimbs
kingdom Animalia
likelyBodyCovering feathers or feather-like structures
likelySocialBehavior possible group hunting (hypothesized)
livedIn Cedar Mountain Formation NERFINISHED
North America NERFINISHED
what is now Utah
locomotion bipedal
namedAfter state of Utah NERFINISHED
namedInHonorOf Chris Mays NERFINISHED
John H. Ostrom NERFINISHED
order Saurischia NERFINISHED
phylum Chordata
popularCulture featured in documentaries about dinosaurs
stateSymbolOf Utah (state dinosaur) NERFINISHED
subfamily Dromaeosaurinae NERFINISHED
suborder Theropoda NERFINISHED
taxonRank genus
temporalRange Barremian–Aptian
typeSpecies Utahraptor ostrommaysorum NERFINISHED
yearDescribed 1993

Referenced by (2)

Full triples — surface form annotated when it differs from this entity's canonical label.

Dromaeosauridae containsTaxon Utahraptor
Velociraptor relatedTaxon Utahraptor