Where: Bonneville, Madison, Teton County, Idaho (43.7° N, 111.3° W: paleocoordinates 6.5° S, 83.6° W)
• local area-level geographic resolution
When: Gallatin Limestone Formation, Franconian (497.0 - 485.4 Ma)
• Also known as the Boysen Limestone by some stratigraphers. Fossils came from the basal part of the Ptychaspis-Prosaukia zone of Late Cambrian age.
Environment/lithology: marine; lithified, medium-grained, gray limestone and lithified, green shale
Size classes: macrofossils, mesofossils
Primary reference: M. H. Staatz and H. F. Albee. 1966. Geology of the Garns Mountain Quadrangle Bonneville, Madison, and Teton Counties, Idaho. United States Geological Survey Bulletin (1205) [A. Zaffos/E. Ito]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 184601: authorized by Andrew Zaffos, entered by Erika Ito on 13.03.2017
Creative Commons license: CC BY (attribution)
Taxonomic list
Conodonta | |
Conodonta indet. conodont | |
Strophomenata | |
Billingsella sp. Hall and Clarke 1892 | |
Lingulata | |
Linguloidea indet. Menke 1828 | |
Artiopoda | |
Pseudagnostus sp. Jaekel 1909 | |
Trilobita | |
"Idahoia sp." = Saratogia, Wilbernia sp.
"Idahoia sp." = Saratogia Walcott 1916 trilobite
Wilbernia sp. Walcott 1924 trilobite | |
Croixana sp. Nelson 1951 trilobite
Taenicephalus sp. Ulrich and Resser 1924 trilobite | |
Xiphosura | |
"Merostomata indet." = Xiphosura
"Merostomata indet." = Xiphosura Latreille 1802 |