Dudleyaspis

{{Use dmy dates|date=January 2023}}

{{Short description|Genus of trilobites}}

{{automatic taxobox

| fossil_range = Middle Silurian-Late Devonian, {{Fossil range|Homerian|Frasnian}}

| image =

| image_caption =

| taxon = Dudleyaspis

| authority = Prantl & Pribyl, 1949

| subdivision_ranks = Species

| subdivision =

• {{extinct}}Dudleyaspis (Dudleyaspis) hamrensis Ramsköld, 1984
• {{extinct}}Dudleyaspis (Snoderaspis) quinquespinosa Campbell, 1967 (Lake, 1896)
• {{extinct}}Dudleyaspis (Dudleyaspis) uncifera Ramsköld, 1984
• {{extinct}}Dudleyaspis (Dudleyaspis) uncifera Ramsköld, 1984

}}

Dudleyaspis (meaning "Dudley shield") is an extinct genus of Lower to Middle Devonian odontopleurid trilobites that lived in a shallow sea that lay between Euramerica and Gondwana.Ramsköld, L. (1984). Silurian Odontopleurid trilobites from Gotland. Palaeontology 27, 2, 239–264. It was named in 1949 by Prantl & Pribyl.F. Prantl and A. Pribyl. (1949). On the genus Symphysurus Goldfuss and allied forms from the Ordovician of Bohemia (Trilobitae). Véstník Královské Ceské Spole ností Nauk Trída mat.-pfír 12:1–16

Fossils of Dudleyaspis have been found in the following locations:

• Australia: Bathurst (Jesse LimestoneWright A. J., Chatterton B. D. E. (1988) Early Devonian trilobites from the Jesse Limestone, New South Wales, Australia, Journal of Paleontology 62 1, 93–103), Mudgee (Flirtation HillChatterton B. D. E., Wright A. J. (1986) Silicified Early Devonian trilobites from Mudgee, New South Wales, Alcheringa 10 3, 279–296) and Murrumbateman (Black Bog Formation – Yarwood Siltstone MemberStrusz D. L., Garratt M. J. (1999) Australian communities, Paleocommunities – a case study from the Silurian and Lower Devonian, 177–199)
• Canada: Northwest Territories (Mackenzie Mountains – Delorme and Whittaker FormationsEdgecombe G. D. (1994) New Lower Silurian (Llandovery) encrinurine trilobites from the Mackenzie Mountains, Canada, Journal of Paleontology 68 4, 824–837Ludvigsen R. (1975) Ordovician formations and faunas, southern Mackenzie Mountains, Canadian Journal of Earth Sciences 12, 663–697) and Nunavut (Bailie-Hamilton and Cornwallis Islands – Cape Phillips FormationAdrain J. M., Edgecombe G. D. (1997) Silurian encrinurine trilobites from the central Canadian Arctic, Palaeontographica Canadiana 14, 1–38)
• Czech Republic: Prague (Loc. 5.2 – C. colonus ZoneKíž J. (1992) Silurian field excursions: Prague Basin (Barrandian), Bohemia, National Museum of Wales, Geological Series 13, 1–111)
• England: Cannock (Shelve DistrictWilliams, A. (1974.) Ordovician Brachiopoda from the Shelve District, Shropshire, ..Bulletin of the British Museum of Natural History (Geology).., Supplement 11, 1–158) and Dudley (Wren's Nest – Much Wenlock Limestone FormationCurtis N.J., Lane P.D. (1997) The Llandovery trilobites of England and Wales. Part 1, Monograph of the Palaeontographical Society 151, 1–50)
• France: Coumiac (Coumiac quarry – Coumiac FormationKlapper G., Feist R., et al (1993) Definition of the Frasnian/Famennian Stage boundary, Episodes 16 4, 433–441House M. R., Becker R. T., et al (2000) The Frasnian/Famennian boundary GSSP at Coumiac, southern France, Courier Forschungs-Institut Senckenberg 225, 59–75)
• Sweden: western Gotland (Visby – Rönnklint sea cliff and Kättelviken)
• United States: Illinois (Chicago – Racine Dolomite and Kankakee – Racine Dolomite), Iowa (Hopkinton DolomiteMikulic D. G. (1981) Trilobites in Paleozoic carbonate buildups, Lethaia 14 1, 45–56), Oklahoma (Anadarko – Henryhouse FormationAmsden T. W. (1975) Hunton Group of the Anadarko Basin of Oklahoma:, Oklahoma Geological Survey Bulletin 121, 1–301) and Wisconsin (Milwaukee – Racine DolomiteMikulic D. G. (1999) Silurian trilobite associations in North America, Paleocommunities—a case study from the Silurian and Lower Devonian, 793–798)