Briscal Formation
Geologic formation in Newfoundland and Labrador, Canada
From Wikipedia, the free encyclopedia
The Briscal Formation is a geologic formation in Newfoundland and Labrador. It preserves fossils dating back to the Ediacaran period.
| Briscal Formation | |
|---|---|
| Stratigraphic range: Ediacaran | |
| Type | Formation |
| Unit of | Conception Group |
| Underlies | |
| Overlies | Gaskiers Formation[1] |
| Thickness | 310 m - 1200 m(1,017 ft - 3,937 ft)[2][3] |
| Lithology | |
| Primary | Sandstone[1] |
| Other | Argillite, Siltstone, Shale[1] |
| Location | |
| Region | Newfoundland and Labrador |
| Country | Canada |
Outcrop occurrence | |
Paleobiota
Like the other overlying and underlying formations, the Briscal Formation represents a rare deep-marine paleoenviroment,[4] and preserves a few fossils, like the large Frondophyllas, only known from incomplete material, some of which sits at over a meter in length.[5]
Color key
|
Notes Uncertain or tentative taxa are in small text; |
Petalonamae
| Genus | Species | Notes | Images |
|---|---|---|---|
| Charniodiscus[3] |
|
Sessile frondose organism. |  |
| Culmofrons[6] |
|
Sessile frondose organism, junior synonym of Beothukis.[7] | |
| Beothukis[7] |
|
Sessile frondose organism. | |
| Fractofusus[3] |
|
Sessile spindle-like frondose organism. |  |
| Frondophyllas[5] |
|
Sessile tree-like frondose organism. | |
| Primocandelabrum[3] |
|
Sessile frondose organism. | |
| Trepassia[3] |
|
Sessile frondose organism. |  |
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