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 (521.0 - 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)