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Monograptidae

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Extinct family of graptolites

Monograptidae
Temporal range: Ordovician - Devonian PreꞒ O S D C P T J K Pg N
Fossil of Monograptus flemingi
Scientific classification
Kingdom: Animalia
Phylum: Hemichordata
Class: Graptolithina
Order: Graptoloidea
Family: Monograptidae
Lapworth, 1873

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

Fossil record

Fossils of Monograptidae are found from the Ordovician to the Devonian (age range: from 460.9 to 402.5 million years ago). They are especially important during the early Silurian. They are known from various localities in Europe, North America, Argentina, China, Central Asia, Southeast Asia, Australia, Algeria and Morocco.

Genera

Maletz (2014) identifies 98 genera of Monograptidae. The family can possibly be divided into several subfamilies.

References

  1. ^ Paleobiology Database Paleobiology Database
  2. ^ Maletz, Jörg (2017). Graptolite Paleobiology. Wiley-Blackwell. ISBN 9781118515617.
  3. 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.
Taxon identifiers
Monograptidae
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