B3 Boulder bed, Broom Point South (Cambrian of Canada)

Where: Newfoundland and Labrador, Canada (49.8° N, 57.9° W)

• Paleocoordinates: 6.8° N, 86.5° W (Wright 2013)

• coordinate stated in text

• outcrop-level geographic resolution

When: Corbinia apopsis trilobite zone, Broom Point Member (Green Point Formation), Trempealeauan (492.5 - 485.4 Ma)

• Local section is Broom Point South but meterage not reported in Fortey et al 1982; this bed is at 177.6 m in the section measured by James and Stevens 1986.

Environment/lithology: grainstone

• Conglomerate deposited in slope environment (Green River Formation) but source of clasts further upslope).
• James and Stevens 1986, p. 127: "conglomerate, a lens of mostly tabular clasts but with 10% equant exotics and clasts of clasts..."

Size class: macrofossils

Collected by R. A. Fortey, D. Skevington; reposited in the ROM

Collection methods: bulk,

Primary reference: R. A. Fortey and D. Skevington. 1980. Correlation of Cambrian-Ordovician boundary between Europe and North America: new data from western Newfoundland. Canadian Journal of Earth Sciences 17(3):382-388 [M. Hopkins/M. Hopkins]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 105857: authorized by Melanie Hopkins, entered by Melanie Hopkins on 26.02.2011

Creative Commons license: CC0 (CC0)

Taxonomic list

Trilobita
 Olenida - Olenidae
Leiobienvillia sp. Rasetti 1954 trilobite
"Bienvillia terranovica" = Leiobienvillia terranovica Rasetti 1954 trilobite
Bienvillia corax Billings 1865 trilobite
 Corynexochida - Illaenuridae
Lecanopyge spp. Raymond 1937 trilobite
 Asaphida - Eurekiidae
"Corbinia apopsis" = Eurekia apopsis
"Corbinia apopsis" = Eurekia apopsis Winston and Nicholls 1967 trilobite
 Ptychopariida - Phylacteridae
"Liostracinoides texanus" = Phylacterus
"Liostracinoides texanus" = Phylacterus trilobite
 Ptychopariida - Catillicephalidae