Where: Pottawattamie County County, Iowa (41.3° N, 95.9° W: paleocoordinates 0.8° S, 27.3° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Hushpuckney Member (Swope 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: F. R. Schram. 1984. Upper Pennsylvanian arthropods from black shales of Iowa and Nebraska. Journal of Paleontology 58(1):197-209 [J. Alroy/D. Lamb/D. Lamb]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 51016: authorized by John Alroy, entered by David Lamb on 26.05.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Euchelicerata | |
Mycterops whitei n. sp.
Mycterops whitei n. sp. Schram 1984 eurypterid | |
Malacostraca | |
Gorgonophontes peleron Schram 1984 mantis shrimp | |
Peachocaris acanthouraea n. sp.
Peachocaris acanthouraea n. sp. Schram 1984 | |
Thylacocephala | |
Concavicaris cf. sinuata Meek and Worthen 1868 |