Radiaspis
From Wikipedia, the free encyclopedia
| Radiaspis Temporal range: | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Clade: | †Artiopoda |
| Class: | †Trilobita |
| Order: | †Odontopleurida |
| Family: | †Odontopleuridae |
| Subfamily: | †Odontopleurinae |
| Genus: | †Radiaspis Richter and Richter 1917 |
| Type species | |
| Arges radiatus Goldfuss, 1843 | |
Radiaspis is a genus of trilobite that lived from Late Ordovician through the Silurian to the mid-Devonian period. Fossils of Radiaspis have been found in present-day Europe, Australia, North Africa, and North America.
Radiaspis is a "generally rare" species found from the Ordovician to Devonian periods. Radiaspis fossils have been discovered in Australia, western Europe, North America, and Morocco.[1] Some of the earliest Radiaspis fossils – Radiaspis tuberata from Aragon – date from the early Late Ordovician, around 445 million years ago. Some of the youngest fossils date to around 386 million years ago, in the lower Givetian;[2] it is believed that the genus Radiaspis and several other trilobite genera became extinct at the time of the Taghanic event.[3]
