M412. Chummy Bore, 6.5 km W of Thorntonia (Cambrian of Australia)

Where: Queensland, Australia (19.5° S, 138.9° E: paleocoordinates 26.7° N, 173.1° W)

• coordinate stated in text

When: Euagnostus opimus trilobite zone, Inca Formation, Undillan (503.0 - 500.5 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; cherty/siliceous siltstone

• Siltstone shale(mottled) with chert.

Size class: macrofossils

Primary reference: A. A. Öpik. 1979. Middle Cambrian agnostids: systematics and biostratigraphy. . Bureau of Mineral Resources, Geology and Geophysics, Bulletin 172:1-188 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 225228: authorized by Pete Wagner, entered by Pete Wagner on 29.04.2022

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Artiopoda
 Agnostida - Doryagnostidae
Euagnostus opimus
Euagnostus opimus Whitehouse 1936
 Agnostida - Ptychagnostidae
"Criotypus lemniscatus" = Goniagnostus lemniscatus, "Criotypus aff. lemniscatus" = Goniagnostus lemniscatus, Onymagnostus angulatus, "Onymagnostus (Agnostonymus) semiermis" = Onymagnostus semiermis
"Criotypus lemniscatus" = Goniagnostus lemniscatus Öpik 1979
"Criotypus aff. lemniscatus" = Goniagnostus lemniscatus Öpik 1979
"Onymagnostus (Agnostonymus) semiermis" = Onymagnostus semiermis Öpik 1979
 Agnostida - Spinagnostidae
Rhodotypiscus nasonis