Cornulitida

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Extinct order of Devonian organisms

title: "Cornulitida" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["tentaculita", "middle-ordovician-first-appearances", "pennsylvanian-extinctions", "prehistoric-animal-orders"] description: "Extinct order of Devonian organisms" topic_path: "general/tentaculita" source: "https://en.wikipedia.org/wiki/Cornulitida" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Extinct order of Devonian organisms ::

Cornulitida is an extinct order of encrusting animals from class Tentaculita, which were common around the globe in the Ordovician to Devonian oceans, and survived until the Carboniferous.{{cite journal | doi = 10.1016/j.palaeo.2008.12.004 | title = Attempted predation on Early Paleozoic cornulitids | year = 2009 | author = Vinn, O. | journal = Palaeogeography, Palaeoclimatology, Palaeoecology | volume = 273 | issue = 1–2 | pages = 87–91 | url = https://www.researchgate.net/publication/222089797 | accessdate = 2014-06-11}}{{cite journal | doi = 10.4267/2042/51214 | title = Cornulitid tubeworms from the Ordovician of eastern Baltic | year = 2013 | author = Vinn, O | journal = Carnets de Géologie | volume = | pages = 131–138 | url = http://paleopolis.rediris.es/cg/CG2013_L03/index.html | accessdate = 2024-01-31 | archive-date = 2016-03-04 | archive-url = https://web.archive.org/web/20160304062528/https://www.researchgate.net/publication/222089797_Attempted_predation_on_Early_Paleozoic_cornulitids | url-status = live | doi-access =free | url-access = subscription | doi = 10.4267/2042/53034 | title = Silurian cornulitids of Estonia (Baltica) | year = 2013 | author = Vinn, O |author2=Wilson, M.A. | journal = Carnets de Géologie | volume = | pages = 357–368 | url = http://paleopolis.rediris.es/cg/CG2013_A09/index.html | doi-access = free | archive-date = 2013-12-27 | archive-url = https://web.archive.org/web/20131227193100/http://paleopolis.rediris.es/cg/CG2013_A09/index.html | url-status = dead

Cornulitids had shells, and were subject to predation by boring and other means from the Ordovician onwards. Many survived attacks by predators. Several cornulitids were endobiotic symbionts in the stromatoporoids and tabulates.{{cite journal | doi = 10.1666/07-056.1 | title = The earliest endosymbiotic mineralized tubeworms from the Silurian of Podolia, Ukraine | year = 2008 | author = Vinn, O. | author2 = Mõtus, M.-A. | journal = Journal of Paleontology | volume = 82 | issue = 2 | pages = 409–414 | s2cid = 131651974 | url = https://www.researchgate.net/publication/222089801 |accessdate = 2024-01-31 |archive-date = 2016-03-04 |archive-url = https://web.archive.org/web/20160304062207/https://www.researchgate.net/publication/222089801_The_earliest_endosymbiotic_mineralized_tubeworms_from_the_Silurian_of_Podolia_Ukraine |url-status = live}}{{cite journal | doi = 10.1127/0077-7749/2010/0048 | title = Endosymbiotic Cornulites in the Sheinwoodian (Early Silurian) stromatoporoids of Saaremaa, Estonia | year = 2010 | author = Vinn, O. | author2 = Wilson, M.A. | journal = Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen | volume = 257 | pages = 13–22 | url = https://www.researchgate.net/publication/222089790 | accessdate = 2024-01-31 | archive-date = 2023-11-06 | archive-url = https://web.archive.org/web/20231106024049/https://www.researchgate.net/publication/222089790_Endosymbiotic_Cornulites_in_the_Sheinwoodian_Early_Silurian_stromatoporoids_of_Saaremaa_Estonia | url-status = live}}{{cite journal | doi = 10.1016/j.palaeo.2012.01.028 | title = Diverse early endobiotic coral symbiont assemblage from the Katian (Late Ordovician) of Baltica | year = 2012 | author = Vinn, O. | author2 = Mõtus, M.-A. | journal = Palaeogeography, Palaeoclimatology, Palaeoecology | volume = 321–322 | pages = 137–141 | url = https://www.researchgate.net/publication/255569552 | accessdate = 2024-01-31 | archive-date = 2023-12-17 | archive-url = https://web.archive.org/web/20231217045501/https://www.researchgate.net/publication/255569552_Diverse_early_endobiotic_coral_symbiont_assemblage_from_the_Katian_Late_Ordovician_of_Baltica | url-status = live}}

Their affinity is unknown; they have been placed in many phyla, and have been considered worms, corals, molluscs and more. They appear to be closely related to other taxa of uncertain affinity, including the microconchids, trypanoporids and tentaculitids.

Gallery

Cornulitids and bryozoan Bellevue.jpg|alt=Cornulitids and bryozoan Bellevue|Cornulitids on a bryozoan; Bellevue Member, Grant Lake Formation, northern Kentucky Conchicolites.jpg|Conchicolites sp. overview of the rings with spines, Lilla Karlsö, Sweden Septalites septatus.jpg|Septalites septatus from the Silurian of Gotland Cornulites cellulosus.jpg|Cornulites cellulosus from Wenlock of Saaremaa, Estonia

References

Olaf Elicki. (January 2011). "First skeletal microfauna from the Cambrian Series 3 of the Jordan Rift Valley (Middle East)". Memoirs of the Association of Australasian Palaeontologists.

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