Also known as Ajax Limestone, Flinders Ranges, Arrowie Basin,
Where: South Australia, Australia (30.6° S, 138.3° E: paleocoordinates 17.1° N, 162.0° W)
When: Ajax Limestone Formation, Atdabanian (520.0 - 516.0 Ma)
• It occurs at 117 m above the base of the section, c. 20 m below the FAD of Abadiella huoi trilobite zone.
•Early Series 2, Stage 3.
Environment/lithology: reef, buildup or bioherm; reef rocks
Size classes: mesofossils, microfossils
Primary reference: T. P. Topper, C. B. Skovsted, G. A. Brock and J. R. Paterson. 2011. The oldest bivalved arthropods from the early Cambrian of East Gondwana: Systematics, biostratigraphy and biogeography. Gondwana Research (19)310-326 [W. Kiessling/M. Krause]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 140338: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 08.03.2013
Creative Commons license: CC BY (attribution)