Black Mountain K109 (Cambrian of Australia)

Where: Queensland, Australia (22.5° S, 140.3° E: paleocoordinates 24.5° N, 174.5° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Chatsworth Limestone Formation, Iverian (494.0 - 489.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, shelly/skeletal, gray, green, sandy limestone

• 7.5 cm layer of olive gray weathered bioclastic crystalline limestone containing disseminated fine quartz sand and imbricated trilobite fragments with sparry infillings

Size classes: macrofossils, mesofossils

Collected by Shergold in 1967, 1969

Collection methods: mechanical,

Primary reference: J. H. Shergold. 1975. Late Cambrian and Early Ordovician trilobites from the Burke River Structural Belt, western Queensland, Australia. Commonwealth of Australia, Department of Minerals and Energy, Bureau of Mineral Resources, Geology and Geophysics Bulletin 153:1-251 [M. Hopkins/M. Hopkins/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 198295: authorized by Melanie Hopkins, entered by Melanie Hopkins on 14.12.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Brachiopoda
  -
Brachiopoda "indet" Cuvier 1805
Artiopoda
 Agnostida - Diplagnostidae
Pseudagnostus clarki
subspecies patulus?
Trilobita
 Corynexochida - Kaolishaniidae
 Asaphida - Dikelocephalidae
Prosaukia "sp. A" Ulrich and Resser 1933 trilobite
 Asaphida - Remopleuridae
Atratebia nexosa Shergold 1975 trilobite
 Asaphida - Asaphidae
 Ptychopariida - Shumardiidae