Elmo (formerly Banner) (Permian to of the United States)

Where: Kansas (38.7° N, 97.2° W: paleocoordinates 4.0° N, 25.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Elmo Limestone Member (Wellington Formation), Sakmarian to Sakmarian (295.5 - 272.3 Ma)

• bed-level stratigraphic resolution

Environment/lithology: peritidal; gray dolomite

• The dolostone with algal laminations in which Phasmatocycas was found in Kansas was probably formed in a sabkha environment, which points to a very dry climate. (p. 113)
• The fossiliferous bed is a dolostone, about 10cm thick and grayish orange in color with lighter colored mottling. The matrix is extremely hard, with very fine algal laminations, and emits a faint bituminous odor when freshly split.

Size class: macrofossils

Preservation: cast, mold/impression, adpression, coalified

Reposited in the USNM

Collection methods: quarrying, surface (in situ),

Primary reference: W. H. Gillespie and H. W. Pfefferkorn. 1986. Taeniopterid lamina on Phasmatocycas megasporophylls (Cycadales) from the Lower Permian of Kansas, U. S. A. Review of Palaeobotany and Palynology 49:99-116 [H. Sims/A. McGowan/H. Pfefferkorn]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 32659: authorized by Hallie Sims, entered by Alistair McGowan on 11.07.2003, edited by Hermann Pfefferkorn and Jason Cassara

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Chlorophyceae
  -
Botryococcus braunii Kutzing 1849
alga
Pinopsida
 Cordaitanthales -
Cordaites sp. Unger 1850
Equisetopsida
 Sphenophyllales - Sphenophyllaceae
Ginkgoopsida
 Pentoxylales - Pentoxylaceae
unclassified
  -
Spermatophyta indet.
platyspermic seed
Sphenopteridae
  - Sphenopteridae
Sandrewia texana
  -
Sandrewia texana Mamay 1975