Where: Pennsylvania (40.9° N, 76.0° W: paleocoordinates 8.7° S, 14.9° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Llewellyn Formation, Westphalian D (309.8 - 307.5 Ma)

• Underclay of unnamed anthracite, 85 feet above Mammoth anthracite. Mammoth seam is in the lower part of the Llewellyn Formation, which is Westphalian D.

• group of beds-level stratigraphic resolution

Environment/lithology: mire or swamp; lithified shale

Size class: macrofossils

Preservation: mold/impression

Collected by William F. Klose II

• Specimens at William Penn Memorial Museum, Harrisburg

Primary reference: F. M. Carpenter. 1980. Studies on North American Carboniferous insects. 6. Upper Carboniferous insects from Pennsylvania. Psyche 87:107-119 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 122503: authorized by Matthew Clapham, entered by Matthew Clapham on 31.12.2011

Creative Commons license: CC BY (attribution)