Asteroceras stellare
Extinct species of ammonite
From Wikipedia, the free encyclopedia
Asteroceras stellare, the true star ammonite, is an extinct species of cephalopod belonging to the Ammonite subclass and to the family Arietitidae.[1]
| Asteroceras stellare Temporal range: | |
|---|---|
| |
| Fossil of Asteroceras stellare from Nuremberg (Germany) | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | †Ammonoidea |
| Order: | †Ammonitida |
| Family: | †Arietitidae |
| Genus: | †Asteroceras |
| Species: | †A. stellare |
| Binomial name | |
| †Asteroceras stellare (Sowerby, 1815) | |
These fast-moving nektonic carnivores lived during the lower Jurassic period, around 196.5 to 189.6 million years ago.[2]
Description
Asteroceras stellare has a shell reaching a diameter of about 90 centimetres (35 in).[2]
Distribution
Fossils of this species may be found in the Jurassic of Germany, Hungary and United Kingdom.[2]
