ammonites
Lower Gleesons Creek, Cliefden Caves (Ordovician of Australia)

Also known as Reef 2482

Where: New South Wales, Australia (33.6° S, 148.9° E: paleocoordinates 15.9° N, 177.0° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Malongulli Formation, Eastonian (456.1 - 449.5 Ma)

• block in the lower part of the formation, Malongulli Formation is Late Eastonian-Early Bolindian (Katian-lowest Hirnantian)

• bed-level stratigraphic resolution

Environment/lithology: slope or ramp reef; lithified limestone and lithified siltstone

• small sponge biostromes
• limestone breccia containing an intermixture of shallow-water coral limestone clasts and blocks of deeper-water dark-grey lime mudstones and wackestones with sponges; embedded in graptolitic and spiculitic siltstones and shale

Size class: macrofossils

Primary reference: J. K. Rigby and B. D. Webby. 1988. Late Ordovician sponges from the Malongulli Formation of central New South Wales, Australia. Palaeontographica Americana 56:1-147 [A. Miller/P. Novack-Gottshall/U. Merkel] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 2696: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 14.07.1999, edited by Uta Merkel