''Dudleyaspis'' (meaning "

Dudley Dudley ( , ) is a market town in the West Midlands, England, southeast of Wolverhampton and northwest of Birmingham. Historically part of Worcestershire, the town is the administrative centre of the Metropolitan Borough of Dudley. In the ...

shield") is an extinct genus of

Lower Lower may refer to: * ''Lower'' (album), 2025 album by Benjamin Booker *Lower (surname) *Lower Township, New Jersey *Lower Receiver (firearms) *Lower Wick Lower Wick is a small hamlet located in the county of Gloucestershire, England. It is sit ...

Middle Devonian In the geological timescale, the Middle Devonian epoch (from 393.3 ± 1.2 million years ago to 382.7 ± 1.6 million years ago) occurred during the Devonian period, after the end of the Emsian age. The Middle Devonian epoch is subdivided into two ...

odontopleurid

trilobite Trilobites (; meaning "three-lobed entities") are extinction, extinct marine arthropods that form the class (biology), class Trilobita. One of the earliest groups of arthropods to appear in the fossil record, trilobites were among the most succ ...

s that lived in a shallow sea that lay between

Euramerica Laurasia () was the more northern of two large landmasses that formed part of the Pangaea supercontinent from around ( Mya), the other being Gondwana. It separated from Gondwana (beginning in the late Triassic period) during the breakup of Pa ...

and

Gondwana Gondwana ( ; ) was a large landmass, sometimes referred to as a supercontinent. The remnants of Gondwana make up around two-thirds of today's continental area, including South America, Africa, Antarctica, Australia (continent), Australia, Zea ...

.Ramsköld, L. (1984). Silurian Odontopleurid trilobites from Gotland. ''Palaeontology'' 27, 2, 239–264. It was named in 1949 by Prantl & Pribyl. Fossils of ''Dudleyaspis'' have been found in the following locations: *Australia: Bathurst ( Jesse Limestone),

Mudgee Mudgee () is a town in the Central West (New South Wales), Central West of New South Wales, Australia. It is in the broad fertile Cudgegong River valley north-west of Sydney and is the largest town in the Mid-Western Regional Council Local gov ...

( Flirtation Hill) and

Murrumbateman Murrumbateman is a town in the Southern Tablelands of New South Wales, Australia. It is on the Barton Highway, approximately 30 kilometres north-west of Canberra, and is part of the Yass Valley Shire. At the , Murrumbateman had a population o ...

( Black Bog Formation – Yarwood Siltstone Member) *Canada:

Northwest Territories The Northwest Territories is a federal Provinces and territories of Canada, territory of Canada. At a land area of approximately and a 2021 census population of 41,070, it is the second-largest and the most populous of Provinces and territorie ...

(

Mackenzie Mountains The Mackenzie Mountains are a Canadian mountain range forming part of the Yukon–Northwest Territories boundary between the Liard and Peel rivers. The range is named in honour of Canada's second prime minister, Alexander Mackenzie. Nahanni ...

–

Delorme DeLorme Publishing Company is a producer of personal satellite tracking, messaging, and navigation technology. The company's main product, ''inReach'', integrates GPS and satellite technologies. ''inReach'' provides the ability to send and rec ...

and Whittaker Formations) and

Nunavut Nunavut is the largest and northernmost Provinces and territories of Canada#Territories, territory of Canada. It was separated officially from the Northwest Territories on April 1, 1999, via the ''Nunavut Act'' and the Nunavut Land Claims Agr ...

( Bailie-Hamilton and Cornwallis Islands – Cape Phillips Formation) *

Czech Republic The Czech Republic, also known as Czechia, and historically known as Bohemia, is a landlocked country in Central Europe. The country is bordered by Austria to the south, Germany to the west, Poland to the northeast, and Slovakia to the south ...

Prague Prague ( ; ) is the capital and List of cities and towns in the Czech Republic, largest city of the Czech Republic and the historical capital of Bohemia. Prague, located on the Vltava River, has a population of about 1.4 million, while its P ...

(Loc. 5.2 – C. colonus Zone) *England:

Cannock Cannock () is a town in the Cannock Chase district in the county of Staffordshire, England. It had a population of 29,018. Cannock is not far from the towns of Walsall, Burntwood, Stafford and Telford. The cities of Lichfield and Wolverhampton ...

( Shelve District) and

(

Wren's Nest The Wren's Nest is a geological Site of Special Scientific Interest in the Dudley Metropolitan Borough, north west of the town centre of Dudley, in the West Midlands of England. It is one of the most important geological locations in Britain. ...

–

Much Wenlock Limestone Formation The Much Wenlock Limestone Formation is a series of Silurian limestone beds that date back to the Homerian age, the later part of the Wenlock epoch.{{cite web , url=http://www.bgs.ac.uk/lexicon/lexicon.cfm?pub=WEL , title=Much Wenlock Limeston ...

) *France: Coumiac (Coumiac

quarry A quarry is a type of open-pit mining, open-pit mine in which dimension stone, rock (geology), rock, construction aggregate, riprap, sand, gravel, or slate is excavated from the ground. The operation of quarries is regulated in some juri ...

–

Coumiac Formation The Coumiac Formation is a geologic formation in France. It preserves fossils dated to the Devonian period. The Global Boundary Stratotype Section and Point (GSSP) for the base of the Famennian Stage of the Devonian is located at Coumiac quarry ...

) *Sweden: western Gotland (

Visby Visby () is an urban areas in Sweden, urban area in Sweden and the seat of Gotland Municipality in Gotland County on the island of Gotland with 24,330 inhabitants . Visby is also the episcopal see for the Diocese of Visby. The Hanseatic League, ...

– Rönnklint

sea cliff A cliffed coast, also called an abrasion coast, is a form of coast where the action of marine waves has formed steep cliffs that may or may not be precipitous. It contrasts with a flat or alluvial coast. Formation In coastal areas in whic ...

and Kättelviken) *United States:

Illinois Illinois ( ) is a U.S. state, state in the Midwestern United States, Midwestern United States. It borders on Lake Michigan to its northeast, the Mississippi River to its west, and the Wabash River, Wabash and Ohio River, Ohio rivers to its ...

(Chicago – Racine Dolomite and Kankakee – Racine Dolomite),

Iowa Iowa ( ) is a U.S. state, state in the upper Midwestern United States, Midwestern region of the United States. It borders the Mississippi River to the east and the Missouri River and Big Sioux River to the west; Wisconsin to the northeast, Ill ...

( Hopkinton Dolomite),

Oklahoma Oklahoma ( ; Choctaw language, Choctaw: , ) is a landlocked U.S. state, state in the South Central United States, South Central region of the United States. It borders Texas to the south and west, Kansas to the north, Missouri to the northea ...

( Anadarko – Henryhouse FormationAmsden T. W. (1975) Hunton Group of the Anadarko Basin of Oklahoma:, ''Oklahoma Geological Survey Bulletin'' 121, 1–301) and

Wisconsin Wisconsin ( ) is a U.S. state, state in the Great Lakes region, Great Lakes region of the Upper Midwest of the United States. It borders Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake Michigan to the east, Michig ...

(

Milwaukee Milwaukee is the List of cities in Wisconsin, most populous city in the U.S. state of Wisconsin. Located on the western shore of Lake Michigan, it is the List of United States cities by population, 31st-most populous city in the United States ...

– Racine DolomiteMikulic D. G. (1999) Silurian trilobite associations in North America, Paleocommunities—a case study from the Silurian and Lower Devonian, 793–798)

References

Odontopleuridae Odontopleurida genera Fossil taxa described in 1949 {{Odontopleurida-stub