Where: Sarpy County County, Nebraska (41.1° N, 96.0° W: paleocoordinates 0.9° S, 27.5° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Stark Shale Member (Dennis Formation), Missourian (306.0 - 303.7 Ma)
• member-level stratigraphic resolution
Environment/lithology: offshore; fine-grained, black shale
Size class: macrofossils
Preservation: mold/impression, adpression, original carbon, replaced with pyrite
Collection methods: quarrying,
Primary reference: M.M. Joachimski and L.L. Lambert. 2015. Salinity contrast in the US Midcontinent Sea during Pennsylvanian glacio-eustatic highstands: Evidence from conodont apatite δ18O. Palaeogeography, Palaeoclimatology, Palaeoecology 433:71-80 [R. Plotnick/R. Plotnick]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 50933: authorized by John Alroy, entered by David Lamb on 24.05.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Euchelicerata | |
Mycterops whitei Schram 1984 eurypterid | |
Malacostraca | |
Gorgonophontes peleron n. sp.
Gorgonophontes peleron n. sp. Schram 1984 mantis shrimp | |
| |
Thylacocephala | |
Concavicaris cf. sinuata Meek and Worthen 1868 |