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 |
The Briscal Formation is a geologic formation in Newfoundland and Labrador. It preserves fossils dating back to the Ediacaran period.
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; |
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. | ![]() |