{{Short description|Genus of trilobite}} {{Automatic taxobox | fossil_range = {{Fossil range|449.5|385.9|Upper Ordovician to Early Givetian}} | image = Radiaspis sp., Middle Devonian, El Otfal Formation, Morocco - Houston Museum of Natural Science - DSC01607.JPG | taxon = Radiaspis | authority = Richter and Richter 1917 | subdivision_ranks = Species | type_species = Arges radiatus | type_species_authority = 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.
== 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.{{sfn|van Viersen|Magrean|2019|p=4}} 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;<ref>[https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=19826&is_real_user=1 ''Radiaspis''], The Paleontology Database. Accessed 18 May 2025, [https://web.archive.org/web/20240812010735/https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=19826&is_real_user=1 Archived] on 12 Aug 2024.</ref> it is believed that the genus ''Radiaspis'' and several other trilobite genera became extinct at the time of the Taghanic event.{{sfn|Feist|McNamara|2007|p=778}}
== Species ==
*''Radiaspis comes'' <small>(Basse, 1998)</small>{{sfn|van Viersen|Magrean|2005|p=89}} *''Radiaspis radiata'' <small>Bruton, 1968</small>{{sfn|van Viersen|Magrean|2005|p=90}} *''Radiaspis taghonorum'' <small>Van Viersen and Magrean 2019</small>{{sfn|van Viersen|Magrean|2019|p=5}}
== Citations == {{Reflist}}
==Bibliography== *{{wikicite |ref={{SfnRef|van Viersen|Magrean|2019}} |reference=Allart van Viersen and Benedict Magrean, 2019. "''Radiaspis taghonorum'' sp. nov. (Trilobita, Odontopleuridae) from the Middle Devonian Hanonet Formation in Resteigne, southern Belgium": [https://www.researchgate.net/publication/335714477_Radiaspis_taghonorum_sp_nov_Trilobita_Odontopleuridae_from_the_Middle_Devonian_Hanonet_Formation_in_Resteigne_southern_Belgium PDF]. Published in ''Neues Jahrbuch für Geologie und Paläontologie – Abhandlungen'' volume 293, issue 3. {{doi|10.1127/njgpa/2019/0841}}.}} *{{wikicite |ref={{SfnRef|van Viersen|Magrean|2005}} |reference=Allart van Viersen and Benedict Magrean, 2005. "A revision of Devonian trilobites from Belgium – Part 1: The genera ''Cornuproetus'' and ''Radiaspis'': [https://biblio.naturalsciences.be/rbins-publications/bulletin-of-the-royal-belgian-institute-of-natural-sciences-earth-sciences/75-2005/irscnb_p4087_0233f4x_75_bulletin-5.pdf PDF]. Published in ''Bulletin de l'Institut Royal des Sciences Naturelles de Belgique, Sciences de la Terre'' volume 75, by the Royal Belgian Institute of Natural Sciences.}} *{{wikicite |ref={{SfnRef|Feist|McNamara|2007}} |reference=Raimund Feist and Kenneth J. McNamara, 2007. "Biodiversity, distribution and patterns of extinction of the last odontopleuroid trilobites during the Devonian (Givetian, Frasnian)": [https://www.researchgate.net/profile/Raimund-Feist/publication/258223162_Biodiversity_distribution_and_patterns_of_extinction_of_the_last_odontopleuroid_trilobites_during_the_Devonian_Givetian_Frasnian/links/00b495276d1e2ba7d9000000/Biodiversity-distribution-and-patterns-of-extinction-of-the-last-odontopleuroid-trilobites-during-the-Devonian-Givetian-Frasnian.pdf PDF]. Published in ''Geological Magazine'' volume 144, issue 5, by Cambridge University Press. {{doi|10.1017/S0016756807003779}}; {{ISSN|1469-5081}}; {{CORE work|28460018}}.}}
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Category:Fossil taxa described in 1917 Category:Odontopleuridae Category:Odontopleurida genera
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