Where: California (36.8° N, 117.1° W: paleocoordinates 1.3° S, 96.0° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Olenellus trilobite zone, Eagle Mountain Shale Member (Carrara Formation), Dyeran (515.3 - 511.2 Ma)
• In the
•Titanothere Canyon and Echo Canyon sections, green
•micaceous siltstones in the basal few meters of the
•member have yielded two olenellid species, Olenellus arcuatus
•n. sp. and O. cylindricus n. sp., which characterize
•the O. arcuatus Zonule, and O. nevadensis (Walcott)[...]
• member-level stratigraphic resolution
Environment/lithology: coastal; micaceous, green siltstone
•micaceous siltstones in the basal few meters of the
•member have yielded two olenellid species, Olenellus arcuatus
•n. sp. and O. cylindricus n. sp., which characterize
•the O. arcuatus Zonule, and O. nevadensis (Walcott)[...]
Size classes: macrofossils, mesofossils, microfossils
Primary reference: A. R. Palmer and R. B. Halley. 1979. Physical Stratigraphy and Trilobite Biostratigraphy of the Carrara Formation (Lower and Middle Cambrian) in the Southern Great Basin. United States Geological Survey Professional Paper 1047:1-131 [W. Kiessling/M. Krause/J. Ju]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 149609: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 15.08.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
Trilobita | |
"Olenellus arcuatus" = Arcuolenellus arcuatus, "Olenellus cylindricus" = Mesonacis cylindricus
"Olenellus arcuatus" = Arcuolenellus arcuatus Palmer and Halley 1979 trilobite
"Olenellus cylindricus" = Mesonacis cylindricus Palmer and Halley 1979 trilobite |