The Horseshoe Canyon Formation is a stratigraphic unit of the Western Canada Sedimentary Basin in southwestern Alberta. It takes its name from Horseshoe Canyon, an area of badlands near Drumheller.
The Horseshoe Canyon Formation is part of the Edmonton Group and is up to 230 metres (750 ft) thick. It is of Late Cretaceous age, Campanian to early Maastrichtian stage (Edmontonian Land-Mammal Age), and is composed of mudstone, sandstone, carbonaceous shales, and coal seams. A variety of depositional environments are represented in the succession, including floodplains, estuarine channels, and coal swamps, which have yielded a diversity of fossil material. Tidally-influenced estuarine point bar deposits are easily recognizable as Inclined Heterolithic Stratification (IHS). Brackish-water trace fossil assemblages occur within these bar deposits and demonstrate periodic incursion of marine waters into the estuaries.
Hatzegopteryx: That's not even the beginning, the whole forum is disturbingly lethargic.
Jun 14, 2014 15:49:29 GMT
Spinosaurus Maroccanus: I'm quite surprised how no one has touched the Argentina 97ma thread
Jun 14, 2014 15:20:28 GMT
Hatzegopteryx: This forum needs some serious attention; I'll be at it for a moment, unless I get other tasks that do not allow me to do so.
Jun 6, 2014 19:13:55 GMT
Hatzegopteryx: It's a genetic fallacy. It's basically an argument that intends to discredit the opponent's position by asserting the opponent's failure to act consistently in accordance with that position.
May 26, 2014 20:47:51 GMT