Skirroceras macrum
From Wikipedia, the free encyclopedia
| Skirroceras macrum | |
|---|---|
 | |
| Fossil of Skirroceras macrum from France, on display at the Museo Civico di Storia Naturale di Milano | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | †Ammonoidea |
| Order: | †Ammonitida |
| Family: | †Stephanoceratidae |
| Genus: | †Skirroceras |
| Species: | †S. macrum |
| Binomial name | |
| †Skirroceras macrum (von Quenstedt) | |
Skirroceras macrum is a Stephanoceratacean (ammonite) species belonging to the family Stephanoceratidae.
These fast-moving nektonic carnivores lived during the Jurassic period, in the Bajocian age.[2]
Skirroceras macrum has an evolute shell reaching about 11.5 centimetres (4.5 in) of diameter. These ammonites are heavily ribbed, with characteristic nodes.
