Where: Yukon, Canada (64.8° N, 135.2° W: paleocoordinates 0.1° S, 41.7° W)
• coordinate stated in text
• local area-level geographic resolution
When: Spathognathodus sulcatus conodont zone, Road River Formation, Pragian (410.8 - 407.6 Ma)
• Lenz (1977) tentatively assigns this part of the section to the Upper Lockhovian; however, he later (in Blodgett, Frýda & Lenz 2001) calls it Early Pragian. Brachiopod biozone: Davidsoniatrypa johnsoni; Conodont biozone: Spathognathodus sulcatus; Graptolite biozone: Monograptus yukonensis.
• group of beds-level stratigraphic resolution
Environment/lithology: limestone
Size classes: macrofossils, microfossils
Preservation: replaced with silica
Collection methods: bulk, chemical,
• Lenz (1977) gives this as 760-770' whereas Frýda et al. (2002) gives this as 142-150 meters. Lenz's closest bed is 495' (150.875 meters), and is lumped with this.
Primary reference: A. C. Lenz. 1977. Upper Silurian and Lower Devonian brachiopods of Royal Creek, Yukon Canada. Part 2. Spiriferida: Atrypacea, Dayiacea, Athyridacea, Spiriferacea. Palaeontographica Abteilung A 159(5-6):111-138 [M. Foote/M. Foote/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 100034: authorized by Pete Wagner, entered by Pete Wagner on 28.11.2010
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
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Perryconcha pulchra n. gen. n. sp.3
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Ladamarekiidae | |
Jardamarekia enigma n. gen. n. sp.2
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Rhynchonellata | |
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"Davidsoniatrypa johnsoni" = Biconostrophia2
"Davidsoniatrypa johnsoni" = Biconostrophia2 |