# Ediacaria > Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Ediacaria > Markdown URL: https://mediated.wiki/source/Ediacaria.md > Source: https://en.wikipedia.org/wiki/Ediacaria > Source revision: 1348297828 > License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) {{Short description|Genus of cnidarians}} {{Other uses|Ediacara (disambiguation){{!}}Ediacara}} {{More footnotes needed|date=February 2020}} {{Automatic taxobox | fossil_range = {{long fossil range|Tonian|Drumian}} | image = Ediacara_Conservation_Park_Ediacaria_flindersi.png | image_alt = | image_caption = | taxon = Ediacaria | authority = [Sprigg](/source/Reg_Sprigg), [1947](/source/1947_in_paleontology) | synonyms = *''Protodipleurosoma'' [Sprigg](/source/Reg_Sprigg), 1949{{IRMNG|1235848|''Ediacaria'' Sprigg, 1947|17 April 2019}} | synonyms_ref = | type_species = ''Ediacaria flindersi'' | type_species_authority = Sprigg, 1947 | subdivision_ranks = Species | subdivision = *''Ediacaria booleyi'' Crimes et al., 1995{{cite journal|last1=Crimes|first1=T.P.|last2=Insole|first2=A.|last3=Williams|first3=B.P.J.|year=1995|title=A rigid-bodied Ediacaran biota from Upper Cambrian strata in Co. Wexford, Éire|journal=Geological Journal|volume=30|issue=2|pages=89–109|doi=10.1002/gj.3350300202}} (biogenic?){{cite journal |last1=MacGabhann |first1=B. A. |last2=Murray |first2=J. |last3=Nicholas |first3=C. |title=Ediacaria booleyi: weeded from the Garden of Ediacara? |journal=Geological Society, London, Special Publications |date=January 2007 |volume=286 |issue=1 |pages=277–295 |doi=10.1144/SP286.20}} *''Ediacaria flindersi'' Sprigg, 1947 }} '''''Ediacaria''''' is a ''[nomen dubium](/source/nomen_dubium)'' [fossil](/source/fossil) [genus](/source/genus) dating to the [Ediacaran](/source/Ediacaran) Period of the [Neoproterozoic](/source/Neoproterozoic) Era. Unlike most [Ediacaran biota](/source/Ediacaran_biota), which disappeared almost entirely from the fossil record at the end of the Period, ''Ediacaria'' fossils have been found dating from the [Baikalian](/source/Baikalian) age (850–650 Ma) of the Upper [Riphean](/source/Riphean_age){{cite journal | doi = 10.1134/S1028334X0803015X | author = K. E. Nagovitsin |author2=D. V. Grazhdankin |author3=B. B. Kochnev | year = 2008 | title = ''Ediacaria'' in the Siberian Hypostratotype of the Riphean | journal = Doklady Earth Sciences | volume = 419A | issue = 3 | pages = 423–427 |bibcode = 2008DokES.419..423N | s2cid = 128480971 }} to 501 [million years ago](/source/million_years_ago), well into the [Cambrian](/source/Cambrian) Period. ''Ediacaria'' consists of concentric rough circles, radial lines between the circles and a central dome, with a diameter from 1 to 70 cm. == Systematics and taxonomy == ''Ediacaria'' was named by [Reg Sprigg](/source/Reg_Sprigg) in 1947, after the [Ediacara Hills](/source/Ediacara_Hills) in [South Australia](/source/South_Australia).{{Cite web|url=http://aussieheritage.com.au/listings/sa/Parachilna/EdiacaraFossilSite-Nilpena/9895|archive-url=https://web.archive.org/web/20080804004859/http://aussieheritage.com.au/listings/sa/Parachilna/EdiacaraFossilSite-Nilpena/9895|url-status=dead|archive-date=2008-08-04|title=Ediacara Fossil Site - Nilpena, Parachilna, SA Profile|date=2008-08-04|access-date=2017-10-27}} Two species are recognised: ''E. flindersi'', described by Sprigg from the Pound [Quartzite](/source/Quartzite) in the Ediacara Hills, and ''E. booleyi'', described in 1995 from a [Late Cambrian](/source/Late_Cambrian) deposit at [Booley Bay](/source/Booley_Bay_Formation) ([County Wexford](/source/County_Wexford)), [Ireland](/source/Ireland). The species were named after the [Flinders Ranges](/source/Flinders_Ranges) and Booley Bay, respectively. ''Ediacaria'' is possibly a synonym for ''[Aspidella terranovica](/source/Aspidella_terranovica)'' described in 1872. Although ''Ediacaria'' is one of the first described organisms from the Precambrian, ''[Aspidella](/source/Aspidella)'' was described earlier, although its age was not understood to be Precambrian. As ''Aspidella'' is apparently a [form taxon](/source/form_taxon), ''Ediacaria'' may yet be valid and denote one specific genus among several that seem to make up ''Aspidella''. ''[Spriggia wadea](/source/Spriggia_wadea)'' is quite likely a synonym of ''Ediacaria'' (and consequently, possibly ''Aspidella''); the differences seem to be merely due to different substrate in which the animals were embedded. (Gehling ''et al.'' 2000) ''Ediacaria'' was often classified as a jellyfish (a [Scyphozoa](/source/Scyphozoa)n [Cnidaria](/source/Cnidaria)n), and has also been interpreted in many of the categories postulated to house the [Ediacaran biota](/source/Ediacaran_biota). A conspicuous filamentous microstructure preserved in some [pyritised](/source/pyrite) specimens suggests that it may have been a microbial colony, which disrupted the surrounding [microbial mat](/source/microbial_mat) to create the distinctive pattern (Grazhdankin, 2007). ==See also== * [List of Ediacaran genera](/source/List_of_Ediacaran_genera) ==References== {{Reflist}} ==Notes== * {{cite journal|last1=Gehling|first1=James G.|last2=Narbonne|first2=Guy M.|last3=Anderson|first3=Michael M.|year=2000|title=The first named Ediacaran body fossil, ''Aspidella terranovica''|journal=Palaeontology|volume=43|issue=3|pages=427–456|doi=10.1111/j.0031-0239.2000.00134.x}} * {{cite conference|last=Grazhdankin|first=D.|date=8 November 2001|title=Microbial origin of some of the Ediacaran fossils|conference=GSA Annual Meeting, November 5–8, 2001|place=Boston, Massachusetts|article-number=Paper 177-0|time=2:45 PM|url=https://gsa.confex.com/gsa/2001AM/finalprogram/abstract_21602.htm|archive-url=https://web.archive.org/web/20140911063210/https://gsa.confex.com/gsa/2001AM/finalprogram/abstract_21602.htm|archive-date=11 September 2014}} * {{cite journal|last1=Grazhdankin|first1=D.|last2=Gerdes|first2=G.|year=2007|title=Ediacaran microbial colonies|journal=Lethaia|volume=40|issue=3|pages=201–210|doi=10.1111/j.1502-3931.2007.00025.x}} * {{cite conference|last1=Lindsley-Griffin|first1=Nancy|last2=Griffin|first2=John R.|last3=Farmer|first3=Jack D.|date=9 May 2006|title=Paleogeographic links between Yreka Terrane (Klamath Mountains, Northern California) and Alaska's Nixon Fork and Alexander Terranes|conference=102nd Annual Meeting of the Cordilleran Section, GSA, 81st Annual Meeting of the Pacific Section, AAPG, and the Western Regional Meeting of the Alaska Section, SPE (8–10 May 2006)|place=Anchorage, Alaska|article-number=Paper 24-6|time=3:30 PM-3:50 PM|url=http://gsa.confex.com/gsa/2006CD/finalprogram/abstract_104214.htm|archive-url=https://web.archive.org/web/20120204050525/http://gsa.confex.com/gsa/2006CD/finalprogram/abstract_104214.htm |archive-date=2012-02-04 }} * {{cite journal|last=Pickerill|first=R.K.|year=1982|title=Cambrian Medusoids from the St. John Group, southwestern New Brunswick|journal=Geological Survey of Canada Current Research Part B|volume=82|issue=1|pages=71–76}} * {{cite journal|last=Sprigg|first=R.C.|year=1947|title=Early Cambrian(?) Jellyfishes from the Flinders Ranges, South Australia|journal=Transactions of the Royal Society of South Australia|volume=71|pages=212–224|url=http://www.samuseum.sa.gov.au/Journals/TRSSA/TRSSA_v071/trssa_v071_p212p224.pdf|archive-url=https://web.archive.org/web/20070929092905/http://www.samuseum.sa.gov.au/Journals/TRSSA/TRSSA_v071/trssa_v071_p212p224.pdf|archive-date=29 September 2007}} * {{cite journal|last=Stasinska|first=A.|year=1960|title=''Velumbrella czarnockii'' n. gen., n. sp. - Meduse du Cambrien Inferieur des Monts de Sainte-Croix|journal=[Acta Palaeontologica Polonica](/source/Acta_Palaeontologica_Polonica)|volume=5|pages=337–346}} * {{aut|Vanguestaine, Michel & Brück, Peter}} (2005): A Middle Cambrian age for the Ediacara-type fauna from the Booley Bay Formation, County Wexford, Ireland: new acritarch data and their implications. ''In:'' {{aut|Steemans, P. & Javaux, E.}} (eds.): Pre-Cambrian to Palaeozoic Palaeopalynology and Palaeobotany. ''[Carnets de Géologie](/source/Carnets_de_G%C3%A9ologie) / Notebooks on Geology'', Memoir 2005/02, Abstract 11 [http://paleopolis.rediris.es/cg/CG2005_M02/CG2005_M02_Abstract11.pdf PDF fulltext] {{Webarchive|url=https://web.archive.org/web/20160303181941/http://paleopolis.rediris.es/cg/CG2005_M02/CG2005_M02_Abstract11.pdf |date=2016-03-03 }} ==Further reading== * {{cite book|first1=M. A.|last1=Fedonkin|first2=J. G.|last2=Gehling|first3=K.|last3=Grey|first4=G. M.|last4=Narbonne|first5=P.|last5=Vickers-Rich|year=2007|title=The rise of animals: Evolution and diversification of the Kingdom Animalia|publisher=The Johns Hopkins University Press|place=Baltimore, MD}} ==External links== * Peripatus Home Page: [https://web.archive.org/web/20060502162112/http://www.peripatus.gen.nz/Paleontology/EdiSur.html Ediacaran Survivors]. Version of 2006-MAY-10. Retrieved 2007-JUN-06. {{Taxonbar|from=Q5337989}} Category:Tonian life Category:Cryogenian life Category:Ediacaran life Category:Cambrian life Category:Fossils of Australia Category:Scyphozoa Category:Fossil taxa described in 1947 --- Adapted from the Wikipedia article [Ediacaria](https://en.wikipedia.org/wiki/Ediacaria) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Ediacaria?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.