Westhoughton open cast colliery (Bolton Museum coll.) (Carboniferous of the United Kingdom)

Where: Lancashire, United Kingdom (53.6° N, 2.5° W: paleocoordinates 0.1° N, 7.4° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Wigan Four-Foot Coal Formation, Westphalian A (318.1 - 314.6 Ma)

• Roof shale of Wigan Four-Foot coal. Uppermost Westphalian A, Lower Modiolaris Chronozone, regularis faunal belt.

• group of beds-level stratigraphic resolution

Environment/lithology: interdistributary bay; lithified, nodular, sideritic shale

Size class: macrofossils

Preservation: mold/impression

Collected by C.A. Horrocks

• Repository: Bolton Museum

Primary reference: E. L. Gill. 1911. A Carboniferous arachnid from Lancashire. The Geological Magazine, New Series, Decade V 8:395-398 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 153490: authorized by Matthew Clapham, entered by Matthew Clapham on 22.12.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Arachnida
 Trigonotarbida - Anthracomartidae
"Maiocercus orbicularis n. sp." = Maiocercus celticus
"Maiocercus orbicularis n. sp." = Maiocercus celticus Pocock 1902