Where: Franklin County, Idaho (42.1° N, 111.6° W: paleocoordinates 7.9° S, 79.5° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Trigonocerca typica trilobite zone, Garden City Formation, Blackhillsian (478.6 - 471.8 Ma)
• 32 foot interval beginning 990 feet above base of formation. Occurs in uppermost part of Lower Member. Uppermost collection made in biozone "H" at this locality.
• group of beds-level stratigraphic resolution
Environment/lithology: shallow subtidal; lithified limestone and lithified conglomerate
Size class: macrofossils
Collected by R. J. Ross, Jr. in 1946-1947; reposited in the YPM
Primary reference: R. J., J.r. Ross. 1951. Stratigraphy of the Garden City Formation in northeastern Utah, and its trilobite faunas. Yale Peabody Museum of Natural History Bulletin 6:1-161 [S. Finnegan/S. Finnegan/P. Wagner]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 103796: authorized by Melanie Hopkins, entered by Melanie Hopkins on 02.02.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
Trilobita | |
Trigonocerca typica Ross 1951 trilobite |