{{Short description|Geologic formation in Newfoundland and Labrador, Canada}} {{Infobox rockunit | image = | caption = | type = Formation | period = Ediacaran | age = Ediacaran {{Fossil range|574|570|ps=(approx)}} | prilithology = Sandstone<ref name="GotAPN">{{cite web|url = https://www.gov.nl.ca/iet/files/88-01.pdf |title=GEOLOGY OF THE AVALON PENINSULA, NEWFOUNDLAND}}</ref> | otherlithology = Argillite, Siltstone, Shale<ref name="GotAPN"/> | namedfor = | namedby = | region = Newfoundland and Labrador | country = Canada | coordinates = | unitof = Conception Group | subunits = | underlies = * Mistaken Point Formation<ref name="GotAPN"/> * Drook Formation<ref name="GotAPN"/> | overlies = Gaskiers Formation<ref name="GotAPN"/> | thickness = 310 m - 1200 m(1,017 ft - 3,937 ft)<ref name=Fitzgerald>{{cite journal |last1=Fitzgerald |first1=Danielle M. |last2=Narbonne |first2=Guy M. |last3=Pufahl |first3=Peir K. |last4=Dalrymple |first4=Robert W. |title=The Mall Bay Formation (Ediacaran) and the protracted onset of the Gaskiers glaciation in Newfoundland, Canada |journal=Precambrian Research |date=June 2024 |volume=405 |article-number=107369 |doi=10.1016/j.precamres.2024.107369|doi-access=free |hdl=1974/32568 |hdl-access=free }}</ref><ref name="TEFotAP">{{cite web |title=2015 Fall Field Trip: The Ediacaran fossils of the Avalon Peninsula |url=https://www.gov.nl.ca/iet/files/mines-geoscience-publications-openfiles-gac-seg-mac-ft-guides-of-nfld-3320-ft-2015.pdf |website=www.gov.nl.ca}}</ref> | extent = | area = | map = Briscal Formation map.svg | map_caption = Outcrop occurrence }}
The '''Briscal Formation''' is a geologic formation in Newfoundland and Labrador. It preserves fossils dating back to the Ediacaran period.
== Paleobiota == Like the other overlying and underlying formations, the Briscal Formation represents a rare deep-marine paleoenviroment,<ref>{{cite journal |last1=Wood |first1=Donald A |last2=Dalrymple |first2=Robert W |last3=Narbonne |first3=Guy M |last4=Gehling |first4=James G |last5=Clapham |first5=Matthew E |title=Paleoenvironmental analysis of the late Neoproterozoic Mistaken Point and Trepassey formations, southeastern Newfoundland |journal=Canadian Journal of Earth Sciences |date=1 October 2003 |volume=40 |issue=10 |pages=1375–1391 |doi=10.1139/e03-048}}</ref> and preserves a few fossils, like the large Frondophyllas, only known from incomplete material, some of which sits at over a meter in length.<ref name="Bamforth">{{cite journal |last1=Bamforth |first1=Emily L. |last2=Narbonne |first2=Guy M. |title=New ediacaran rangeomorphs from Mistaken Point, Newfoundland, Canada |journal=Journal of Paleontology |date=November 2009 |volume=83 |issue=6 |pages=897–913 |doi=10.1666/09-047.1}}</ref>
{{Paleobiota-key-compact}}
=== Petalonamae ===
{| class="wikitable" style="width:70%;" |- !Genus !Species !Notes !Images |- |''Charniodiscus<ref name="TEFotAP"/>'' | *''Charniodiscus sp.'' |Sessile frondose organism. |center|100px |- |style="background:#E6E6E6;"|''Culmofrons<ref>{{cite journal |last1=Laflamme |first1=Marc |last2=Flude |first2=Lija I. |last3=Narbonne |first3=Guy M. |title=Ecological tiering and the evolution of a stem: the oldest stemmed frond from the Ediacaran of Newfoundland, Canada |journal=Journal of Paleontology |date=March 2012 |volume=86 |issue=2 |pages=193–200 |doi=10.1666/11-044.1}}</ref>'' |style="background:#E6E6E6;"| *''C. plumosa'' |style="background:#E6E6E6;"|Sessile frondose organism, junior synonym of Beothukis.<ref name="Liu">{{cite journal |last1=Liu |first1=Alexander G. |last2=Matthews |first2=Jack J. |last3=McIlroy |first3=Duncan |title=The B eothukis / C ulmofrons problem and its bearing on E diacaran macrofossil taxonomy: evidence from an exceptional new fossil locality |journal=Palaeontology |date=January 2016 |volume=59 |issue=1 |pages=45–58 |doi=10.1111/pala.12206|hdl=1983/605900ac-5976-4d0a-a4a7-dfc6aefd1566 |hdl-access=free }}</ref> |style="background:#E6E6E6;"| |- |''Beothukis<ref name="Liu"/>'' | *''B. plumosa'' |Sessile frondose organism. | |- |''Fractofusus<ref name="TEFotAP"/>'' | *''Fractofusus sp.'' |Sessile spindle-like frondose organism. |center|100px |- |''Frondophyllas<ref name="Bamforth"/>'' | *''F. grandis'' |Sessile tree-like frondose organism. | |- |''Primocandelabrum<ref name="TEFotAP"/>'' | *''Primocandelabrum sp.'' |Sessile frondose organism. | |- |''Trepassia<ref name="TEFotAP"/>'' | *''Trepassia sp.'' |Sessile frondose organism. |center|100px |- |}
==See also== {{Portal|Earth sciences|Canada|Paleontology|}} * List of fossiliferous stratigraphic units in Newfoundland and Labrador
==References== * {{cite web|title= Fossilworks: Gateway to the Paleobiology Database|author= ((Various Contributors to the Paleobiology Database))|url= https://www.fossilworks.org|access-date= 17 December 2021}} <references/>
Category:Ediacaran Newfoundland and Labrador Category:Geologic formations of Newfoundland and Labrador Category:Sandstone formations of Canada Category:Siltstone formations of Canada Category:Shale formations of Canada
{{NewfoundlandLabrador-geologic-formation-stub}} {{Ediacaran-stub}} Category:Lagerstätten