Also known as USGS 3746-CO; 1-32-14; USNM loc. 42034 (coll. B. Waggoner and S. Richardson, 2000)
Where: Esmeralda County, Nevada (37.9° N, 117.9° W: paleocoordinates 0.7° S, 93.2° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Emigrant Formation, Delamaran (511.2 - 506.5 Ma)
• "Questionably Middle Cambrian. Could be unusual Lower Cambrian fauna"
•
•Waggoner 2003: "The available evidence seems to favor an Upper Cambrian age for Quasimodaspis, but there is not enough evidence at this time to date Quasimodaspis precisely."
Environment/lithology: offshore shelf; fine-grained, gray, green shale and red, yellow dolomite
Size class: mesofossils
Preservation: mold/impression
Collected by Albers and Stewart; Waggoner in ????, 2000; reposited in the USNM
Primary reference: P. T. Robinson, J. H. Stewart, R. J. Moiola and J. P. Albers. 1976. Geologic map of the Rhyolite Ridge quadrangle, Esmeralda County, Nevada. [J. Marcot/J. Marcot]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 204005: authorized by Jonathan Marcot, entered by Jonathan Marcot on 29.08.2019
Creative Commons license: CC BY (attribution)
Taxonomic list
Inarticulata | |
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Artiopoda | |
Quasimodaspis brentsae n. sp.
Quasimodaspis brentsae n. sp. Waggoner 2003 "Several individuals of a form related to Molaria or Emeraldella"
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