Where: Utah (40.5° N, 112.6° W: paleocoordinates 5.7° S, 86.8° W)
• coordinate based on nearby landmark
When: Taenicephalus - Saukia trilobite zone, Hellnmaria Member (Notch Peak Formation), Franconian (497.0 - 485.4 Ma)
• "Franconian? B/w Taenicephalus and Saukia zones"
• member-level stratigraphic resolution
Environment/lithology: peritidal; carbonate
Size classes: macrofossils, mesofossils
Primary reference: B. Runnegar, J., J.r. Pojeta, M. E. Taylor and D. Collins. 1979. New species of the Cambrian and Ordovician chitons Matthevia and Chelodes from Wisconsin and Queensland: evidence for the early history of polyplacophoran mollusks. Journal of Paleontology 53(6):1374-1394 [P. Wagner/P. Wagner/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 253: authorized by Jack Sepkoski, entered by Mike Sommers on 20.11.1998
Creative Commons license: CC BY (attribution)
Taxonomic list
Paragastropoda | |
| |
Polyplacophora | |
Matthevia variabilis Walcott 1885 chiton |