Also known as Chester Series

Where: Johnson County County, Illinois (37.4° N, 88.8° W: paleocoordinates 9.0° S, 26.6° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Waltersburg Formation, Namurian to Namurian (330.9 - 318.7 Ma)

Environment/lithology:

Size class: macrofossils

Preservation: adpression, permineralized, original carbon, replaced with pyrite

Collection methods: quarrying, mechanical,

Primary reference: J. R. Jennings and D. A. Eggert. 1977. Preliminary Report on Permineralized Senftenbergia from the Chester Series of Illinois. Review of Palaeobotany and Palynology 24:221-225 [W. Stein/J. Kao/J. Kao]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 21209: authorized by Bill Stein, entered by Jenny Kao on 20.06.2002, edited by Dylan Horvath

Creative Commons license: CC BY (attribution)