Washington (Permian to of the United States)

Where: Kansas (39.8° N, 97.1° W: paleocoordinates 4.3° N, 25.3° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Winfield Formation (Chase Group), Asselian to Asselian (298.9 - 272.3 Ma)

Environment/lithology: terrestrial; shale

Size class: macrofossils

Reposited in the USNM

• Very limited geological information

Primary reference: D. White. 1912. The characters of the fossil plant Gigantopteris Schenk and its occurrence in North America. Proceedings of the United States National Museum 41:493-516 [H. Sims/S. Ostrowski/A. McGowan]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 11162: authorized by Hallie Sims, entered by Summer Ostrowski on 23.07.2001, edited by Heather Lindon

Creative Commons license: CC BY (attribution)

Taxonomic list

 Cyatheales - Polypodiidae
"Pecopteris hemitelioides" = Hemitelites hemitelioides
"Pecopteris hemitelioides" = Hemitelites hemitelioides Brongniart 1834 scaly tree fern
 Filicinae -
  - Neuropteridae
"Neuropteris ? auriculata" = Neurodontopteris auriculata
"Neuropteris ? auriculata" = Neurodontopteris auriculata Brongniart 1830
 Radiatopses - Medullosaceae
 Sphenophyllales -
 Peltaspermales - Peltaspermaceae
Odontopteris brardii Brongniart 1825
Callipteris conferta Sternberg 1833
 Cycadales -