Diplograptidae

Diplograptidae
Scientific classification
Kingdom:	Animalia
Phylum:	Hemichordata
Class:	Graptolithina
Order:	Graptoloidea
Family:	Diplograptidae; Lapworth, 1873

Last updated February 08, 2021

Diplograptidae is an extinct family of graptolites.^[1]

Genera

List of genera from Maletz (2014):^[2]

Subfamily Diplograptinae

† Apiograptus Cooper & McLaurin, 1974
† Archiclimacograptus Mitchell, 1987
† Diplograpsis M’Coy, 1850
† Eoglyptograptus Mitchell, 1987
† Exigraptus Mu, 1979 in Mu et al. (1979)
† Fenhshiangograptus Hong, 1957
† Levisograptus Maletz 2011
† Mesograptus Elles & Wood, 1907
† Oepikograptus Obut, 1987
† Prorectograptus Li, 1994
† Pseudamplexograptus Mitchell, 1987
† Urbanekograptus Mitchell, 1987

Subfamily Orthograptinae

† Amplexograptus Elles & Wood, 1907
† Anticostia Stewart & Mitchell, 1997
† Arnheimograptus Mitchell, 1987
† Ceramograptus Hudson, 1915
† Geniculograptus Mitchell, 1987
† Hustedograptus Mitchell, 1987
† Orthograptus Lapworth, 1873
† Orthoretiograptus Mu, 1977 in Wang & Jin (1977)
† Pacificograptus Koren’, 1979
† Paraorthograptus Mu et al., 1974
† Pararetiograptus Mu et al., 1974
† Peiragraptus Strachan, 1954
† Pseudoreteograptus Mu, 1993 in Mu et al. (1993)
† Rectograptus Přibyl, 1949
† Uticagraptus Riva, 1987

Related Research Articles

Graptolithina is a subclass of the class Pterobranchia, the members of which are known as graptolites. These organisms are colonial animals known chiefly as fossils from the Middle Cambrian through the Lower Carboniferous (Mississippian). A possible early graptolite, Chaunograptus, is known from the Middle Cambrian. One analysis suggests that the pterobranch Rhabdopleura represents extant graptolites. Studies on the tubarium of fossil and living graptolites showed similarities in the basic fusellar construction and it is considered that the group most probably evolved from a Rhabdopleura-like ancestor.

Pterobranchia is a clade of small worm-shaped animals. They belong to the Hemichordata, and live in secreted tubes on the ocean floor. Pterobranchia feed by filtering plankton out of the water with the help of cilia attached to tentacles. There are about 25 known living pterobranch species in three genera, which are Rhabdopleura, Cephalodiscus, and Atubaria. On the other hand, there are several hundred extinct genera, some of which date from the Cambrian Period.

Roman Kozłowski was a Polish palaeontologist, best known for his work on graptolites.

Rhabdopleura is a genus of colonial sessile hemichordates belonging to the Pterobranchia class. As one of the oldest living genera with a fossil record dating back to the Middle Cambrian, it is also considered to be the only living genus of graptolites.

Monograptidae is an extinct family of graptolites of the Order Graptoloidea. Monograptids have only one row of thecae per stipe, unlike the biserial graptolites which have two opposing rows of thecae per stipe.

Sigmagraptidae is an extinct family of graptolites.

Sinograptidae is an extinct family of graptolites.

Abrograptidae is an extinct family of graptolites from the Middle Ordovician.

Pterograptidae is an extinct family of graptolites.

Tetragraptidae is an extinct family of graptolites from the Floian to Darriwilian epochs of the Ordovician Period.

Isograptidae is an extinct family of graptolites.

Glossograptidae is an extinct family of graptolites.

Lasiograptidae is an extinct family of graptolites.

Climacograptidae is an extinct family of graptolites.

Dicranograptidae is an extinct family of graptolites.

Normalograptidae is an extinct family of graptolites.

Neodiplograptidae is an extinct family of graptolites.

Dimorphograptidae is an extinct family of graptolites.

Dithecodendridae is an extinct family of graptolites.

Axonophora is an extinct suborder of graptolites. It primarily consists of the biserial graptolites, and also includes the retiolitids and monograptids.

References

↑ Maletz, Jörg (2017). Graptolite Paleobiology. Wiley-Blackwell. ISBN 9781118515617.
↑ Maletz, Jörg (2014). "The classification of the Pterobranchia (Cephalodiscida and Graptolithina)". Bulletin of Geosciences. 89 (3): 477–540. doi: 10.3140/bull.geosci.1465 . ISSN 1214-1119.

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[Maletzgp-1] Maletz, Jörg (2017). Graptolite Paleobiology. Wiley-Blackwell. ISBN 9781118515617.

[Maletzclass-2] Maletz, Jörg (2014). "The classification of the Pterobranchia (Cephalodiscida and Graptolithina)". Bulletin of Geosciences. 89 (3): 477–540. doi: 10.3140/bull.geosci.1465 . ISSN 1214-1119.

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