Lower Member, Benjamin Limestone, Florentine Synclinorium, Tasmania, Australia (Ordovician to of Australia)

Where: Tasmania, Australia (42.0° S, 146.0° E: paleocoordinates 9.0° N, 177.0° W)

• local area-level geographic resolution

When: Lower Member (Benjamin Limestone Formation), Gisbornian to Gisbornian (458.4 - 457.2 Ma)

• Gordon Subgroup; unit ranges below into Llandeilo, but fossils limited to Lower Caradocian units

• member-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, pyritic, calcareous, cherty/siliceous grainstone and dolomite

• Variably dolomitized with stylolites; Brown and black limonitic limestone, often with chert horizons. Fauna comes from "crinoidal calcarenite"; authors suggest shallow shelf, with faunas during times of greater current activity

Primary reference: K. D. Corbett and M. R. Banks. 1974. Ordovician stratigraphy of the Florentine Synclinorium, southwest Tasmania. Papers and Proceedings of the Royal Society of Tasmania 107:207-238 [A. Miller/P. Novack-Gottshall/A. Clement]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 2684: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 14.07.1999

Creative Commons license: CC BY (attribution)

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