🪐 View in 3D Galaxy 📏 View on 3D Scale Stage

🧬 Biological Classification (Kingdom to Species)Deinonychus antirrhopus

Kingdom

Animalia

Phylum

Chordata

Class

Reptilia

Order

Family

Dromaeosauridae

Genus

Deinonychus

Species

Deinonychus antirrhopus

📏 True-scale comparison (1 m = 1 m) against a 1.75 m humanLength 3.4m

· Grid units represent actual meters (m); human and animals are drawn to the exact same scale with original silhouette aspect ratios preserved.
· When a size range is recorded (e.g. 1–1.6m), the lower bound is used for scale comparison.
· Deinonychus silhouette: PhyloPic — Manabu Sakamoto · CC BY 3.0
· Human silhouette: PhyloPic — NASA · Public Domain Mark 1.0

• Length vs. 1.75 m human: 1.9× / Mass vs. 70 kg: 1.4×Compare with other species →

Reptilia🥩 Carnivore

Deinonychus

Deinonychus antirrhopus (Deinonychus · Deinonychus)

🛡️ Conservation Status (IUCN Red List)FOSSIL (Extinct Fossil)

Known only from fossils. The IUCN Red List assesses only species extant since 1500 CE, so fossil taxa are not assigned a category.

Geological Era

Early Cretaceous – Late Cretaceous (~121.4 MYA)

Diet

Carnivore

Length · Height

3.4m · No data

Mass · Top Speed

100kg · No data

Habitat & Fossil Locality

On land in North America (United States) during the Early Cretaceous

💡 Everyday Comparisons for Size, Mass & Speed

💡 An estimated body length of about 3.4 m (representative value for the genus) is shorter than a passenger car (about 4.5 m), and a weight of about 100 kg is about 1.4 times that of an adult man (about 70 kg) (Comparison).
💡 The museum explains that the raptors shown in the movie "Jurassic Park" were mostly modeled on Deinonychus.

Reference standards: coach bus ~12 m, mid-size car ~4.9 m, compact car ~1 t, basketball hoop 3.05 m, credit card 8.56 cm.

📊 Mass & Speed Index (0–100)

⚖️ Mass Index (Blue Whale ~190 t = 100, log scale)60

Site-computed relative index from recorded values; not a formal scientific metric.

#데이노니쿠스#Deinonychus antirrhopus

📖 1. Overview

Deinonychus antirrhopus (genus Deinonychus) was a small carnivorous theropod (family Dromaeosauridae) that lived in North America during the Early Cretaceous and is a close relative of Velociraptor. Its name means "terrible claw."

🦴 2. Anatomy & Morphology

It had a large, sickle-shaped claw on the second toe of its foot, which it held off the ground while walking. A long, stiff tail balanced its body.

🔍 3. Fossil Record & Paleoecology

It ate herbivorous dinosaurs and other vertebrates such as mammals. Its first fossils were found in southern Montana, USA, in 1964, sparking the widespread view of dinosaurs as active animals.