''Didrepanon'' is a

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 ...

in the order

Phacopida Phacopida ("lens-face") is an order of trilobites that lived from the Late Cambrian to the Late Devonian. It is made up of a morphologically diverse assemblage of taxa in three related suborders. Characteristics Phacopida had 8 to 19 thoraci ...

, that existed during the upper

Silurian The Silurian ( ) is a geologic period and system spanning 23.5 million years from the end of the Ordovician Period, at million years ago ( Mya), to the beginning of the Devonian Period, Mya. The Silurian is the third and shortest period of t ...

in what is now

England England is a Countries of the United Kingdom, country that is part of the United Kingdom. It is located on the island of Great Britain, of which it covers about 62%, and List of islands of England, more than 100 smaller adjacent islands. It ...

. It was described by Philip D. Lane in 1971, and the

type species In International_Code_of_Zoological_Nomenclature, zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the spe ...

is ''Didrepanon falcatum''. The type locality was in

Sedgley Sedgley is a town in the north of the Dudley district, in the county of the West Midlands, England. Historically part of Staffordshire, Sedgley is on the A459 road between Wolverhampton and Dudley, and was formerly the seat of an ancient ...

.Available Generic Names for Trilobites
P.A. Jell and J.M. Adrain.

References

External links

''Didrepanon''
at the

Paleobiology Database The Paleobiology Database (PBDB) is an online resource for information on the distribution and classification of fossil animals, plants, and microorganisms. History The Paleobiology Database originated in the NCEAS-funded Phanerozoic Marine Pale ...

Cheiruridae Fossil taxa described in 1971 Silurian trilobites of Europe Fossils of Great Britain Paleozoic life of the Northwest Territories Phacopida genera {{Phacopida-stub