SD-19, Maceration #202-#2060-403.89ft, Slim Buttes area, Harding Co., SD (Paleocene of the United States)

Also known as Drill hole SD-19, Maceration #202, Sample #2060, at 403.89 ft, Slim Buttes area, about 20 miles SE of Buffalo, Harding Co., South Dakota (Ludlow Member of the Fort Union Formation)

Where: Harding County, South Dakota (45.6° N, 103.5° W: paleocoordinates 50.9° N, 81.2° W)

• coordinate based on nearby landmark

When: Ludlow Member (Fort Union Formation), Paleocene (66.0 - 56.0 Ma)

• member-level stratigraphic resolution

Environment/lithology: mire or swamp; coal

• from a thin coal streak below the Lower Olesrud coal bed at 403.89 feet depth

•coarse fraction (+210 microns)

Size class: microfossils

Preservation: original sporopollenin

Collection methods: core, chemical, sieve,

Primary reference: S. J. Dijkstra. 1961. Some Paleocene megaspores and other small fossils. Mededelingen van de Geologische Stichting, Nieuwe Serie (13)5-11 [R. Lupia/T. Naeher/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 34038: authorized by Rick Lupia, entered by Tiffany Naeher on 12.08.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Polypodiopsida
 Salviniales - Polypodiidae
Azolla schopfi n. sp.
Pteridopsida
  -
Triletes velus n. sp.