Where: Quebec, Canada (48.5° N, 64.3° W: paleocoordinates 26.0° S, 43.0° W)
• coordinate based on nearby landmark
• local area-level geographic resolution
When: Garin Formation, Edenian to Edenian (451.0 - 449.6 Ma)
• PJW: Was White Head, but that has been redefined to be younger; given quadrimucronatus, Garin is appropriate. ("Caradoc" probably reflects the Edenian being considered Caradoc at one time.)
Environment/lithology: offshore; lithified shale and lithified dolomite
Size class: macrofossils
Primary reference: P. J. Lespérance. 1968. Ordovician and Silurian trilobite faunas of the White Head Formation, Percé Region, Québec. Journal of Paleontology 42(3):811-826 [M. Patzkowsky/Z. Krug/J. Alroy]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 13128: authorized by Mark Patzkowsky, entered by Zack Krug on 22.01.2002
Creative Commons license: CC BY (attribution)
Taxonomic list
Pterobranchia | |
Orthograptus cf. quadrimucronatus ssp. indet. Lapworth 1873 graptolite | |
Trilobita | |
Lonchodomas sp. Angelin 1854 trilobite | |
Dionide sp. Barrande 1847 trilobite | |
Tretaspis sp. M'Coy 1849 trilobite |