Tasch Locality Kay II, Bed 6 (Permian of the United States)

Where: Oklahoma (36.9° N, 97.4° W: paleocoordinates 2.2° N, 26.8° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Midco Member (Wellington Formation), Artinskian (290.1 - 279.3 Ma)

• 0.50 feet thick, 9.37 feet above classic Midco Insect Bed of Raasch

• bed-level stratigraphic resolution

Environment/lithology: lacustrine; lithified, argillaceous limestone

• Playa lake, evaporative salt lake setting

Size classes: macrofossils, mesofossils

Preservation: mold/impression

Primary reference: P. Tasch and J. R. Zimmerman. 1962. The Asthenohymen-Delopterum Bed, A New Leonardian Insect Horizon in the Wellington of Kansas and Oklahoma. Journal of Paleontology 36(6):1319-1333 [C. Labandeira/C. Labandeira/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 104827: authorized by Matthew Clapham, entered by Matthew Clapham on 10.02.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

 Dicondylia - Ditaxineuridae
Ditaxineura ? cellulosa Carpenter 1933 winged insect
 Megasecoptera - Protohymenidae
Protohymen anomalus n. sp. Zimmerman 1962 winged insect
Protohymen shafferi n. sp. Zimmerman 1962 winged insect
Protohymen pictus n. sp. Zimmerman 1962 winged insect