Trilobite Hill, lower Cliefden Caves Limestone (Ordovician of Australia)

Where: New South Wales, Australia (33.5° S, 148.9° E: paleocoordinates 15.4° N, 176.2° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Belodina confluens conodont zone, Cliefden Caves Limestone Formation, Eastonian (452.7 - 449.5 Ma)

• Zone Ea2 (see Percival et al 2008, Proc of Lin Soc of NSW 129, 127- 204)

• group of beds-level stratigraphic resolution

Environment/lithology: lithified limestone

• Lithology described as spicule-bearing marls and siltstones

Size classes: macrofossils, mesofossils

Preservation: cast

Collection methods: Several articles, each describing a specific taxonomic group.

Primary reference: B. Webby. 1971. The trilobite Pliomerina Chugaeva from the Ordovician of New South Wales. Palaeontology 14(4):612-622more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 235980: authorized by Melanie Hopkins, entered by Melanie Hopkins on 02.09.2024

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Asaphida - Remopleurididae
Remopleurides acer Webby 1973 trilobite
 Asaphida - Asaphidae
Asaphidae indet. Burmeister 1843 trilobite
Pseudobasilicus fortis Webby 1973 trilobite
 Trinucleida - Trinucleidae
Parkesolithus sp. Campbell and Durham 1970 trilobite
 Corynexochida - Styginidae
Scutelluidae indet. Richter and Richter 1955 trilobite
referred to as Eobronteus sp. in Webby 1971 but corrected in Webby 1973
 Phacopida - Pliomeridae
Pliomerina prima Webby 1971 trilobite