Also known as Reef 1766

Where: South Australia, Australia (30.6° S, 138.3° E: paleocoordinates 17.3° N, 162.1° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Ajax Limestone Formation, Atdabanian (520.0 - 516.0 Ma)

• lower faunal assemblage 2

• group of beds-level stratigraphic resolution

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

Size class: macrofossils

Collection methods: peel or thin section,

Primary reference: D. I. Gravestock. 1984. Archaeocyatha from lower parts of the Lower Cambrian carbonate sequence in South Australia. Memoir of the Association of Australasian Palaeontologists 2:1-139 [W. Kiessling/U. Merkel] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 81172: authorized by Wolfgang Kiessling, entered by Uta Merkel on 09.06.2008