Where: California (36.4° N, 116.6° W: paleocoordinates 1.5° S, 94.9° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Albertella trilobite zone, Pahrump Hills Shale Member (Carrara Formation), Delamaran (511.2 - 506.5 Ma)
• The Pahrump Hills Shale Member is poorly fossiliferous,
•but collections from different areas contain elements
•of both the Zacanthoidid and Albertella-Mexicella Zonules
•of the Albertella Zone.
• member-level stratigraphic resolution
Environment/lithology: coastal; brown, green, red mudstone and limestone
•heterogeneous sequence of red, brown, and green
•mudstones and shales, chloritic and cryptalgal limestones,
•thin chloritic oolites, and pelloidal limestones.
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 149640: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 19.08.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
| Trilobita | |
"Syspacephalus obscurus" = Mexicella obscurus
"Syspacephalus obscurus" = Mexicella obscurus Palmer and Halley 1979 trilobite | |