James 'B' Anticline [Stairway Sandstone] (Ordovician of Australia)

Also known as PanCon A85-385C; Assemblage 2; Loc. 3 of Young (1997)

Where: Northern Territory, Australia (24.0° S, 133.4° E: paleocoordinates 14.6° N, 164.4° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Histiodella holodentata zone, Stairway Sandstone Formation, Llanvirn (466.0 - 460.9 Ma)

• STRATIGRAPHIC RELATIONS: From the Stairway Sandstone, which overlies the Horn Valley Siltstone (Arenig) and is overlain by the Stokes Fm. AGE: Llandvirn or early Darriwilian, on the basis of conodont biostratigraphy. STRATIGRAPHIC POSITION: Basal member of the Carmichael Sandstone, about 20 m above the base of the formation.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified sandstone

• SPECIFIC LITHOLOGY: Sandstone? LITHIFICATION: Lithified, on the basis of sample preparation.

Size class: macrofossils

Collected by Young

Collection methods: bulk, chemical, sieve,

• COLLECTOR: G. C. Young, 1980's. REPOSITORY: Commonwealth Palaeontological Collection, AGSO, Canberra, Australia.

Primary reference: G. C. Young. 1997. Ordovician Microvertebrate Remains from the Amadeus Basin, Central Australia. Journal of Vertebrate Paleontology 17(1):1-25 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 90420: authorized by Austin Hendy, entered by Austin Hendy on 19.07.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Limited to vertebrate taxa described in text. NOMENCLATURE: Authoritative publication with modern nomenclature and genus and species-resolution identifications where possible.
 Arandaspidida - Arandaspididae
Porophoraspis sp. Ritchie and Gilbert-Tomlinson 1977 jawless fish
Arandaspis sp. Ritchie and Gilbert-Tomlinson 1977 jawless fish