Where: Dallas County, Missouri (37.6° N, 93.1° W: paleocoordinates 22.4° S, 80.5° W)
• coordinate based on nearby landmark
When: Jefferson City Formation, Tulean to Tulean (480.8 - 470.0 Ma)
• "Eopteria Zone"
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithology not reported
Size class: macrofossils
Preservation: cast, original aragonite, replaced with calcite
Primary reference: E. O. Ulrich, A. F. Foerste, A. K. Miller and W. M. Furnish. 1942. Ozarkian and Canadian cephalopods, Part I: Nautilicones. Geological Society of America Special Papers 37:1-157 [B. Kröger/B. Kröger/B. Kröger]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 98451: authorized by Björn Kröger, entered by Björn Kröger on 07.10.2010, edited by Pete Wagner
Creative Commons license: CC BY (attribution)
Taxonomic list
Rostroconchia | |
Eopteria richardsoni2 Billings 1865 | |
Cephalopoda | |
Pycnoceras clausum Ulrich et al. 1942 | |
Mcqueenoceras jeffersonense1 Ulrich and Foerste 1936 | |
Cumberloceras elwayense1 Ulrich et al. 1943 |