Locality 65. H109F*. East side of prominent line of hills, on scarp face. 0.8 kilometers east of road to Sandover River, and 6.5 kilometers south of where this road crosses sheet boundary (Cambrian of Australia)

Also known as 587 mm E x 414 mm N

Where: Northern Territory, Australia (21.7° S, 136.4° E: paleocoordinates 22.4° N, 178.6° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Lower Beds Member (Tomahawk Formation), Payntonian (489.5 - 488.3 Ma)

• member-level stratigraphic resolution

Environment/lithology: marine; medium-grained, yellow sandstone

• medium-grained yellow quartz sandstone

Size class: macrofossils

Collected by D. Woolley in 1958

• CPC & QML specimens

Primary reference: J. Pojeta, J. Gilbert-Tomlinson, and J.H. Shergold. 1977. Cambrian and Ordovician rostroconch molluscs from Northern Australia. Australian Bureau of Mineral Resources, Geology and Geophysics Bulletin 171:1-54 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 77603: authorized by Pete Wagner, entered by Pete Wagner on 15.01.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Rostroconchia
 Ribeirioida - Ribeiriidae
Cymatopegma semiplicatum
Cymatopegma semiplicatum Pojeta et al. 1977