# Tetragraptus

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> Source: https://en.wikipedia.org/wiki/Tetragraptus
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{{Short description|Genus of marine worm-like animals}}
{{Italic title}}
{{Automatic taxobox
| fossil_range = [Ordovician](/source/Ordovician)<br>~{{fossil range|478|455}}
| image = Graptolite tetragraptus.jpg
| image_caption = ''[Tetragraptus fruticosus](/source/Tetragraptus_fruticosus)''
| image2 = Tetragraptus approximatus (Nicholson).jpg
| image2_caption = ''[Tetragraptus approximatus](/source/Tetragraptus_approximatus)''
| taxon =Tetragraptus
| authority = [Salter](/source/John_William_Salter), 1863
| type_species =
| type_species_authority =
| subdivision_ranks =
| subdivision =
* ''T. akzharensis''
* ''[T. approximatus](/source/Tetragraptus_approximatus)''
* ''[T. fruticosus](/source/Tetragraptus_fruticosus)''
* ''T. insuetus''
| synonyms_ref =
| synonyms =
}}

'''''Tetragraptus''''' is an extinct genus of [graptolite](/source/graptolite)s from the [Ordovician](/source/Ordovician) period.

== Species ==
Source:<ref name=FWTetragraptus/>
* ''T. akzharensis''
* ''[T. approximatus](/source/Tetragraptus_approximatus)''
* ''[T. fruticosus](/source/Tetragraptus_fruticosus)''
* ''T. insuetus''

== Distribution ==
Fossils of ''Tetragraptus'' have been found in Argentina, Australia, Bolivia, Canada (Quebec, Yukon, Newfoundland and Labrador and Northwest Territories), Chile, China, Colombia (near [Caño Cristales](/source/Ca%C3%B1o_Cristales), [Meta](/source/Meta_Department)), the Czech Republic, France, Morocco, New Zealand, Norway, the Russian Federation, Spain, Sweden, the United Kingdom, and the United States (Alaska, Idaho, Nevada, Utah).<ref name=FWTetragraptus>[https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=33778 ''Tetragraptus''] at [Fossilworks](/source/Fossilworks).org</ref>

== References ==
{{Portal|Paleontology}}
{{Reflist}}

== Further reading ==
* {{cite book |title=Dinosaurs to Dodos: An Encyclopedia of Extinct Animals |author=Don Lessem & Jan Sovak |publisher=[Scholastic](/source/Scholastic_Corporation) |year=1999 |isbn=978-0-590-31684-2}}

{{Taxonbar|from=Q2153291}}

Category:Graptoloidea
Category:Graptolite genera
Category:Ordovician animals of Africa
Category:Ordovician animals of Asia
Category:Ordovician animals of Europe
Category:Ordovician animals of North America
Category:Ordovician Canada
Category:Ordovician United States
Category:Ordovician animals of South America
Category:Ordovician Argentina
Category:Ordovician Bolivia
Category:Ordovician Chile
Category:Ordovician Colombia
Category:Fossils of Colombia
Category:Fossil taxa described in 1863
Category:Paleozoic life of Newfoundland and Labrador
Category:Paleozoic life of the Northwest Territories
Category:Paleozoic life of Quebec

{{paleo-invertebrate-stub}}

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Adapted from the Wikipedia article [Tetragraptus](https://en.wikipedia.org/wiki/Tetragraptus) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Tetragraptus?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.