Section AJX-M, sample AJX-M 268.7. 150.2 meters. (Cambrian of Australia)

Also known as Ajax Limestone, Abadiella huoi trilobite zone

Where: South Australia, Australia (30.6° S, 138.3° E: paleocoordinates 17.1° N, 162.0° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Abadiella huoi trilobite zone, Ajax Limestone Formation, Atdabanian (521.0 - 516.0 Ma)

• A total interval range of 1.45 m from 150.26- 151.71 m above the base in section AJX-M (Ajax Limestone)

Environment/lithology: reef, buildup or bioherm; reef rocks

• Grey to buff bioclastic (commonly silicified) and nodular mottled limestones

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 140342: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 08.03.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
 Bradoriida - Hipponicharionidae
Quadricona madonnae
Quadricona madonnae Topper et al. 2011