Where: Newfoundland and Labrador, Canada (49.0° N, 55.5° W)
• Paleocoordinates: 45.1° S, 112.5° W (Wright 2013)
• coordinate based on political unit
When: Crepicephalus trilobite zone, Downes Point Member (Shallow Bay Formation), Dresbachian (497.0 - 485.4 Ma)
• Kindle Zone 3 (preliminary, agnostoid-based evaluation by co-author) JA: correlates with Utah zones (see Fig. 6) that are entirely Middle Cambrian according to Gradstein et al. 2004. AGE: Dresbachian; refined by A. Hendy (6/2009) on the basis of biostratigraphic data (= Crepicephalus zone). Lower part of Downes Point member
• group of beds-level stratigraphic resolution
Environment/lithology: offshore shelf; lithified, shelly/skeletal packstone and lithified grainstone
Size class: macrofossils
Collection methods: Specimens from boulders
Primary reference: S. R. Westrop, R. Ludvigsen, and C. H. Kindle. 1996. Marjuman (Cambrian) agnostoid trilobites of the Cow Head Group, western Newfoundland. Journal of Paleontology 70(5):804-829 [M. Patzkowsky/P. Borkow/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 9703: authorized by Mark Patzkowsky, entered by Phil Borkow on 11.01.2001
Creative Commons license: CC0 (CC0)
Taxonomic list
Artiopoda | |
Ptychagnostus atavus Tullberg 1880 | |
Hypagnostus parvifrons Linnarsson 1869 | |
"Peronopsis segmenta" = Pentagnostus (Meragnostus) segmenta, "Peronopsis interstricta" = Itagnostus interstrictus
"Peronopsis segmenta" = Pentagnostus (Meragnostus) segmenta Robison 1964 |