• Member description taken from 2007 Long. Tempestite frequency curves: a key to Late Ordovician and Early Silurian subsidence, sea-level change, and orbital forcing in the Anticosti foreland basin, Quebec, Canada. Can. J. Earth Sci. Vol. 44, 413-431. "The Velleda Member in its type section along the north-east coast consists of about 10 m of laminated siltstone and claystone, laminated to thin-bedded, fine and very fine sand-stone, with minor coarse sandstone and nodular micrite. In the western sections, the member is 15 m thick and is dominated by interbedded massive to laminated and thin-bedded micrites, calcareous mudstones, and grainstones. Individual micrite beds are typically 3 to 15 cm thick and have a sharp, planar base overlain by a thin layer of broken fossils. This basal lag is overlain by massive to weakly laminated micrite(floatstone), which appears to be partially bioturbated. Chondrites burrows are common, commonly forming 2% to 5% of the rock. The upper surfaces of the micrites, and parts of the overlying calcareous mudstones, are pitted and burrowed. The lateral continuity of individual beds is high (tens of metres) although some thinning and thickening are evident along strike. Larger scale architectural elements, including channels and symmetrical, draped waveforms are apparent in the cliff face and in tidal-flat exposures."