Where: Western Australia, Australia (30.3° S, 115.3° E: paleocoordinates 41.2° S, 56.0° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: 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

Collected by P.E. Playfair, H.H. Johnstone in 1953

• 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 171219: authorized by Matthew Clapham, entered by Matthew Clapham on 04.07.2015

Creative Commons license: CC BY (attribution)