Split Rock, Mutawintji National Park [Rowena Fm] (Ordovician of Australia)

Also known as Mootwingee

Where: New South Wales, Australia (31.1° S, 142.4° E: paleocoordinates 15.8° N, 175.4° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Rowena Formation, Llanvirn (466.0 - 460.9 Ma)

• STRATIGRAPHIC RELATIONS: From the Rowena Fm AGE: Darriwilian; here placed in Llanvirn to avoid orphaning. STRATIGRAPHIC POSITION: Exact horizon unknown but probably from the middle to upper part of the formation.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified quartzite

• SPECIFIC LITHOLOGY: Fossiliferous quartzites. LITHIFICATION: Lithified, on the basis of facies description.

Size class: macrofossils

Preservation: mold/impression

Collected by Jenkins in 1982

Collection methods: surface (in situ),

• COLLECTOR: C. Jenkins. REPOSITORY: ‘Geology Museum’ at the Australian National University, Canberra (formerly Geology Department, ANU, now Research School of Earth Sciences).

Primary reference: G. C. Young. 2009. An Ordovician vertebrate from western New South Wales, with comments on Cambro-Ordovician vertebrate distribution patterns. Alcheringa 33:79-89 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 90375: authorized by Austin Hendy, entered by Austin Hendy on 17.07.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for marine vertebrates. NOMENCLATURE: Authoritative publication, with modern nomenclature, but without species-resolution identification.
 Arandaspidida - Arandaspididae
Arandaspis sp. Ritchie and Gilbert-Tomlinson 1977 jawless fish