Bell Springs Formation | |
---|---|
Stratigraphic range:
Norian-
Rhaetian ~ | |
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Type | Geological formation |
Lithology | |
Primary | Sandstone |
Location | |
Coordinates | 43°00′N 108°48′W / 43.0°N 108.8°W |
Approximate paleocoordinates | 19°12′N 46°24′W / 19.2°N 46.4°W |
Region | Wyoming |
Country | ![]() |
The Bell Springs is a member of the Nugget Sandstone in Wyoming and a formation in Utah. [1] It is a Late Triassic ( Norian to Rhaetian) [2] Fossil theropod tracks assigned to Agialopous wyomingensis have been reported from the formation. [3] [4]
The formation composed of very fine grained limy sandstone that is distinguished from upper part of Nugget by presence of red to purple-red shale and lime cemented siltstone in beds less than 0.1 ft thick and by presence of calcareous firmly indurated beds 1-4 ft thick that are ripple laminated and weather to square faced ledges. May correlate with upper part of Chinle Formation. [5]
Bell Springs Formation | |
---|---|
Stratigraphic range:
Norian-
Rhaetian ~ | |
![]() | |
Type | Geological formation |
Lithology | |
Primary | Sandstone |
Location | |
Coordinates | 43°00′N 108°48′W / 43.0°N 108.8°W |
Approximate paleocoordinates | 19°12′N 46°24′W / 19.2°N 46.4°W |
Region | Wyoming |
Country | ![]() |
The Bell Springs is a member of the Nugget Sandstone in Wyoming and a formation in Utah. [1] It is a Late Triassic ( Norian to Rhaetian) [2] Fossil theropod tracks assigned to Agialopous wyomingensis have been reported from the formation. [3] [4]
The formation composed of very fine grained limy sandstone that is distinguished from upper part of Nugget by presence of red to purple-red shale and lime cemented siltstone in beds less than 0.1 ft thick and by presence of calcareous firmly indurated beds 1-4 ft thick that are ripple laminated and weather to square faced ledges. May correlate with upper part of Chinle Formation. [5]