Locality 85. T 412. Tarlton Range, 8.5 kilometers south-southeast of Tarlton Downs Homestead (Ordovician of Australia)

Also known as 147 mm E x 136 mm N TOBERMORY

Where: Northern Territory, Australia (22.9° S, 138.8° E: paleocoordinates 19.1° N, 166.8° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Lower Beds Member (Carlo Sandstone Formation), Darriwilian (467.3 - 458.4 Ma)

• Near contact with Nora Formation.

•http://dbforms.ga.gov.au/pls/www/geodx.strat_units.sch_full?wher=stratno=3624. Age and evidence: Fauna suggests a Middle Ordovician (latest Arenigian-Llanvirnian) age (Öpik and Gilbert-Tomlinson in Smith 1972, Shergold et al 1976). Lies conformable atop of Nora formation.

• group of beds-level stratigraphic resolution

Environment/lithology: lithified, brown, red, sandy limestone and micaceous sandstone

• Shallow littoral marine in shoaling or barrier island setting (Shergold et al 1976); high-energy barrier with barrier island, flat and bay subfacies (Draper 1977).
• Fine-grained decalcified sandstone, white/yellow/orange/pinkish-brown. Dark reddish-brown staining; surface silicification

Size class: macrofossils

Preservation: replaced with silica

Collection methods: CPC & QML specimens

Primary reference: J. Pojeta and J. Gilbert-Tomlinson. 1977. Australian Ordovician pelecypod molluscs. Bureau of Mineral Resources, Geology and Geophysics, Bulletin 174:1-64 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 79313: authorized by Pete Wagner, entered by Pete Wagner on 29.02.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Myalinida - Ambonychiidae
Pteronychia aff. haupti
Pteronychia aff. haupti Pojeta and Gilbert-Tomlinson 1977 clam