Where: Arkansas (35.7° N, 94.0° W: paleocoordinates 7.8° S, 30.6° W)

When: Moscovian (315.2 - 307.0 Ma)

• "...the thin seam of coal between the millstone grit and the subcarboniferous limestones ; and if the period of deposition of the millstone grit was the same in the eastern and western coal deposits (see the introduction), is the oldest." Scudder, 1879

Environment/lithology: terrestrial; lithified, black, carbonaceous shale

Size class: mesofossils

Preservation: mold/impression, adpression

Primary reference: L. Lesquereux. 1860. Botanical and palaeontological report of the Geological State Survey of Arkansas. In D.D. Owen (ed.), Second Report of a Geological Reconnoissance of the Middle and Southern Counties of Arkansas 295-399 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 122587: authorized by Matthew Clapham, entered by Jered Karr on 03.01.2012

Creative Commons license: CC BY (attribution)