Loading AI tools
Extinct genus of molluscs From Wikipedia, the free encyclopedia
Phylloceras is an extinct genus of ammonoid cephalopods belonging to the family Phylloceratidae. These nektonic carnivores lived from Early Jurassic (Hettangian age) to Late Cretaceous (Maastrichtian age) (from 201.30 to 66.043 Ma).[1][2]
Phylloceras Temporal range: | |
---|---|
Artist's reconstruction | |
Fossil shell of Phylloceras species, part removed to reveal the sutures | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Cephalopoda |
Subclass: | †Ammonoidea |
Order: | †Ammonitida |
Family: | †Phylloceratidae |
Subfamily: | †Phylloceratinae |
Genus: | †Phylloceras Suess 1865[2] |
Species[2] | |
|
Shells of Phylloceras can reach a diameter of about 8–10 centimetres (3.1–3.9 in), with a maximum of about 20 centimetres (7.9 in). These primitive ammonites had an involute, laterally flattened shell with a regular shell opening. They were almost smooth and the ornamentation was virtually absent or, at most, represented by simple growth lines barely visible. The striking sinuous suture lines were characteristic of this genus. They are reminiscent, in some ways, of the leaves of plants (hence the name Phylloceras, which means " leaf-horn").
Fossils of species within this genus have been found all over the world, particularly in Western Europe.[2]
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.