Deinonychus

Deinonychus antirrhopus

Deinonychus revolutionized our understanding of dinosaurs when described by John Ostrom in 1969, sparking the Dinosaur Renaissance. Its large sickle-shaped toe claw and evidence of pack hunting suggested dinosaurs were active, intelligent animals.

Physical Description

Measurement	Value	Human Scale
Uzunluk	3.4 m	about the size of a human adult
Height	0.9 m	—
Ağırlık	73 kg	about 1 adult humans

Diet & Feeding

Carnivore

Deinonychus was a meat-eating predator. Carnivorous dinosaurs were active hunters or scavengers, equipped with sharp teeth and claws for catching and consuming prey. They occupied the top of the food chain in their ecosystems.

Time Period

Cretaceous Early Mesozoic Era

Deinonychus lived during the Cretaceous Early period of the Mesozoic Era, approximately 145,0 to 100,5 million years ago.

The Cretaceous saw continued dinosaur evolution with the rise of ornithopods and early ceratopsians. Flowering plants first appeared and began to transform terrestrial ecosystems. Spinosaurus and other large theropods lived during this time.

Discovery & Naming

Adlandıran	John Ostrom
Keşif Yılı	1969
Keşif Yeri	Montana, USA

Sınıflandırma

Dinosauria → Saurischia → Theropoda → Dromaeosauridae → Deinonychus

Raptors

Small to medium-sized feathered theropods known for their sickle-shaped retractable claws on the second toe. Includes Velociraptor and Deinonychus. Closely related to birds.