Also known as Waterfall Section
Where: Newfoundland, Canada (48.7° N, 58.9° W: paleocoordinates 25.2° S, 36.3° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Climacograptus spiniferus - Geniculograptus pygmaeus zone, Upper Member (Winterhouse Formation), Katian (453.0 - 445.2 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: shallow subtidal; shelly/skeletal limestone and silty shale
• Overall, the Winterhouse Formation represents deposition in a shallow marine, storm-dominated shelf environment (of source mixing type as per Mount, 1984), supplied by both siliciclastic (dominant) and carbonate sources. Significant alongstrike facies variations do not occur, and this, in combination with the limited paleocurrent evidence available, suggests that present-day strike is approximately parallel that of the paleoshoreline. In the lower part of the section, the carbonate facies appear distinct from the siliciclastic facies, but the apparently greater degree of mixing of carbonate material with siliciclastic material higher in the section may indicate gradual redistribution by storms of material from two sources which were initially independent. The presence of both conglomerate and sandstone packages at the same stratigraphic horizons suggests that the record of a major series of storm events may extend for several kilometres along strike, although its lithological signature may vary.
• Flexicalymene verecunda was collected from a bed of shelly limestone 2.5 cm thick. The section here is inverted and the fossiliferous limestone forms part of a poorly exposed sequence of flaggy siltstones and silty shales.
Size class: macrofossils
Reposited in the GSC
Primary reference: L. Quinn, S. H. Williams, D. A. T. Harper and E. N. K. Clarkson. 1999. Late Ordovician foreland basin fill: Long Point Group of onshore western Newfoundland. Bulletin of Canadian Petroleum Geology 47(1):63-80 [P. Wagner/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 192322: authorized by Pete Wagner, entered by Pete Wagner on 22.03.2018
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
Rhynchonellata |
Orthida - Dalmanellidae |
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Orthida - Hesperorthidae |
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Strophomenata |
Strophomenida - Rafinesquinidae |
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Strophomenida - Sowerbyellidae |
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