UQL4844, Gray Creek Lst Mbr, Quinton Fmn, Broken River Province, NE Queensland (Silurian of Australia)

Where: Queensland, Australia (20.0° S, 145.0° E: paleocoordinates 17.0° N, 160.6° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Gray Creek Limestone Member (Quinton Formation), Telychian (438.5 - 433.4 Ma)

• Allochthonous limestones near the base of the Quinton Formation. Stratigraphic sequence of members is not clear. Age assignment based on graptolites.

• member-level stratigraphic resolution

Environment/lithology: marine; limestone

• "The limestones occur within predominantly siliciclastic turbiditic sediments, and consist of large slumped blocks, calcirudites and calcarenites. These were probably derived from contemporaneous shallow marine areas along the unstable N margin of a small, rapidly subsiding basin, which developed during the Early Silurian in a probably extensional tectonic setting."
• Siliciclastic sediments form the bulk of the Quinton Formation. Corals are from allochthonous limestone blocks. Gray Creek Member: limestone clasts in a thin matrix-supported conglomerate

Reposited in the UQ

Primary reference: T. J. Munson and J. S. Jell. 1999. Llandovery rugose corals from the Quinton Formation, Broken River Province, northeast Queensland. Memoirs of the Association of Australasian Palaeontologists 21:1-65 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 39224: authorized by Michael Foote, entered by Michael Foote on 24.05.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• Most of the fauna is not well studied. This monograph is confined to rugose corals.
Anthozoa
 Cystiphyllida - Holmophyllidae
 Stauriida - Streptelasmatidae
? Grewingkia sp. Dybowski 1873 horn coral