Train mounds, near Lawrence (Carboniferous of the United States)

Where: Douglas County, Kansas (38.9° N, 95.3° W: paleocoordinates 3.0° S, 28.3° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Lawrence Formation (Douglas Group), Kasimovian (307.0 - 303.7 Ma)

• "Lawrence? Shales". The specimen is preserved as part and counterpart in a siderite concretion and, on the back of the counterpart, someone (presumably the collector) carved the words "Oct. 12th 1884 I dug this f[rom] the coal." Based on our experience with upper Paleozoic strata of eastern Kansas, the specimen probably was collected from siderite concretions that occur in the shale immediately above the Williamsburg coal bed, near the top of the Lawrence Formation.

• group of beds-level stratigraphic resolution

Environment/lithology: estuary or bay; lithified, concretionary, sideritic siliciclastic sediments

• The Lawrence Formation in Douglas County, Kansas, is interpreted to have been deposited in an estuarine to coal-forming swamp and floodplain setting along a coastal delta plain.

Size class: macrofossils

Collected in 1884; reposited in the YPM

Primary reference: L. E. Babcock and D. F. Merriam. 2000. Horseshoe crabs (Arthropoda: Xiphosura) from the Pennsylvanian of Kansas and elsewhere. Transactions of the Kansas Academy of Science 103:76-94 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 34254: authorized by Elizabeth Kowalski, entered by Elizabeth Kowalski on 22.08.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Xiphosura
 Xiphosurida - Belinuridae
Euproops danae
Euproops danae Meek and Worthen 1865
YPM 35153