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Université de Fribourg

Paleoecology of Pennsylvanian phylloid algal buildups in south Guizhou, China

Enpu, Gong ; Samankassou, Elias ; Changqing, Guan ; Yongli, Zhang ; Baoliang, Sun

In: Facies, 2007, vol. 53, no. 4, p. 615-623

Pennsylvanian phylloid algal reefs are widespread and well exposed in south Guizhou, China. Here we report on reefs ranging from 2 to 8 m thickness and 30–50 m lateral extension. Algae, the main components, display a wide spectrum of growth forms, but are commonly cyathiform (cup-shaped) and leaf-like (undulate plates). The algal reef facies is dominated by boundstone. Algal thalli form a...

Université de Fribourg

Construction versus accumulation in phylloid algal mounds: an example of a small constructed mound in the Pennsylvanian of Kansas, USA

Samankassou, Elias ; West, Ronald R.

In: Palaeogeography, Palaeoclimatology, Palaeoecology, 2002, vol. 185(3-4), p. 379

Most phylloid algal mounds are currently interpreted as no more than accumulations of leaf-like thalli supported by mud. We report here phylloid algae from the Upper Pennsylvanian (Late Carboniferous) Frisbie Limestone Member in Kansas, USA, which built small mounds with recognizable primary topographic relief. Cup-shaped algal thalli, growing closely packed and juxtaposed near and above one...