Ampyx (trilobite)
| Ampyx | |
|---|---|
 | |
| Ampyx cetsarum group | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | †Trilobita |
| Order: | †Asaphida |
| Family: | †Raphiophoridae |
| Genus: | †Ampyx Dalman, 1827 |
| Type species | |
| Ampyx nasutus | |
| Species | |
| |
| Synonyms | |
|
Brachyampyx | |
Ampyx (meaning hairband) is a Ordovician-Silurian genus of Asaphid trilobites of the family Raphiophoridae. Species of Ampyx are characterized by three extended spines on the head-shield, one spine derived from each free cheek, and one spine emanating from the glabellum.[1] Species include Ampyx linleyensis (Lanvirn-Caradoc series).[2]
Species of Ampyx grew to an average length of 1.5 inches (3.8 cm).
Distribution
Fossils of Ampyx have been found in:[3]
- Ordovician
- Acoite, Suri, Ponon-Trehue, Sepulturas and San Juan Formations, Argentina
- Sella Formation, Bolivia
- Australia
- Canada (British Columbia, Newfoundland and Labrador, Northwest Territories, Quebec, Yukon)
- China
- France
- Iran
- Ireland
- Morocco
- Norway
- Russia
- Sweden
- United Kingdom
- United States (California, Maine, Nevada, Tennessee, Virginia)
- Silurian
- Italy
- United Kingdom
References
- ↑ H H Swinnerton - Outlines of Palaentology, Edward Arnold (Publishers) Ltd, 1972. ISBN 0-7131-2357-5.
- ↑ British Palaeozoic Fossils - Natural History Museum 4th edition 1975. Plate 8. ISBN 0-565-05624-7.
- ↑ Ampyx at Fossilworks.org
See also
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