A life reconstruction of Compsognathus in its habitatDV-0019Alcobaça Fm., France

Compsognathus

komp-SOG-nuh-thus

"elegant jaw"

DV-0019

Lived
155 to 145 million years ago, Late Jurassic
Diet
Carnivore
Length
about 1 m (3 ft)
Group
Theropods, Compsognathidae
Found in
France, Germany and Portugal
Named by
Wagner 1861

Field notes

About Compsognathus

What it was like

Compsognathus was one of the smallest dinosaurs known, roughly the size of a chicken, and it grew to about 1 meter (3 feet) long including its tail. It walked on two long, slender legs and had small, grasping hands with sharp claws.

Its skull was light and narrow, with small sharp teeth suited for catching quick, small prey. Fossils of both known skeletons preserve the remains of small lizards in the stomach area, showing what this little hunter actually ate.

Its world

Compsognathus lived from about 155 to 145 million years ago, during the Late Jurassic, in what is now France, Germany, and Portugal. Its fossils come from formations including Alcobaça and Painten.

It lived alongside much larger dinosaurs, including the plant eaters Camarasaurus and Dacentrurus, as well as smaller theropods such as Aviatyrannis and Juravenator. Its small size and light frame suited a warm environment with plenty of low cover to dart through while hunting.

How it was found

Wagner named Compsognathus in 1861, making it one of the first dinosaurs known from a fairly complete skeleton. About 4 finds are known today, and its closest relatives, including Sinocalliopteryx and Huaxiagnathus, were also small, fast-moving theropods.

The evidence

Where its fossils were found

Today

4 finds

150 million years ago

Map: C. R. Scotese, PALEOMAP

To scale

How big was Compsognathus?

0 m0.5 m1 m1.5 m
Compsognathus: about 1 m (3 ft) · Person: 1.8 m (6 ft)Silhouette: typical theropod shape

Lived alongside

Found in the same rock formations.

Close relatives

Other members of Compsognathidae.

Sources: Paleobiology Database, WikidataNamed in: J. A. Wagner. 1861. Neue Beiträge zur Kenntniss der urweltlichen Fauna des lithographischen Schiefers [New contributions to the knowledge of the ancient fauna of the lithographic slates]. Abhandlungen der königlichen bayerische Akademie der Wissenschaft, II Classe 9(1):65-124