Where: Western Australia, Australia (28.7° S, 114.9° E: paleocoordinates 40.1° S, 57.5° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Newmarracarra Limestone Formation (Champion Bay Group), Early/Lower Bajocian (171.6 - 168.4 Ma)

• Correlated with the ovalis/laeviuscula Zones of the lower Bajocian by Hall (1989).

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified limestone

Size classes: macrofossils, mesofossils

Collection methods: Old UWA collection. Specimens lost in transit from Arkell back to Western Australia.

Primary reference: W. J. Arkell and P. E. Playford. 1954. The Bajocian ammonites of Western Australia. Philosophical Transactions of the Royal Society of London, B 237:547-605 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 171226: authorized by Matthew Clapham, entered by Matthew Clapham on 04.07.2015

Creative Commons license: CC BY (attribution)