Where: Beaver County, Pennsylvania (40.8° N, 80.5° W: paleocoordinates 7.6° S, 18.1° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Kittanning Formation (Allegheny Group), Westphalian D (309.8 - 307.5 Ma)
• Shale immediately below Upper Kittaning Coal (=Darlington Coal). Kittanning Formation, Allegheny Group, Middle Pennsylvanian (approximately middle Westphalian D, or Desmoinesian in Midcontinent terms)
• group of beds-level stratigraphic resolution
Environment/lithology: terrestrial; lithified, black shale
Size class: macrofossils
Preservation: adpression
Collected by S. F. Mansfield; reposited in the YPM
Primary reference: C. E. Hall. 1877. Contribution to Paleontology from the Museum of the Second Geological Survey of Pennsylvania . Proceedings of the American Philosophical Society 16(99):621-622 [R. Plotnick/R. Plotnick]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 225177: authorized by Roy Plotnick, entered by Roy Plotnick on 28.04.2022, edited by Matthew Clapham
Creative Commons license: CC BY (attribution)
Taxonomic list
Myriapoda | |
Arthropleura cf. cristata Richardson 1959 millipede | |
Euchelicerata | |
Adelophthalmus mansfieldi Hall 1877 eurypterid |