Black Mountain K105 (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, carbonaceous grainstone

• 7.5-15 cm thick layer of light purplish to olive gray coarse-grained bituminous biosparite (shelly calcarenite), grain supported, with fine sparite settling out on upper surfaces of trilobites and pelmatozoan fragments.

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 198291: authorized by Melanie Hopkins, entered by Melanie Hopkins on 14.12.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Artiopoda
 Agnostida - Diplagnostidae
Pseudagnostus clarki patulus
Trilobita
 Asaphida - Remopleurididae
Sigmakainella primaeva
 Asaphida - Dikelocephalidae
Caznaia squamosa
 Ptychopariida - Shumardiidae
Koldinioidia cf. cylindrica
 Corynexochida - Kaolishaniidae
Hapsidocare chydaeum
 Olenida - Eulomidae
"Euloma (Plecteuloma) strix" = Plecteuloma strix
"Euloma (Plecteuloma) strix" = Plecteuloma strix Shergold 1975 trilobite
Artiopoda
 Agnostida - Diplagnostidae
Pseudagnostus coronatus, Pseudagnostus "sp. A"
Pseudagnostus "sp. A" Jaekel 1909