Radiaspis

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 Temporal range: Upper Ordovician to Early Givetian PreꞒ Ꞓ O S D C P T J K Pg N
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

Fossil range

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]

Species

• Radiaspis comes (Basse, 1998)^[4]
• Radiaspis radiata Bruton, 1968^[5]
• Radiaspis taghonorum Van Viersen and Magrean 2019^[6]