KTZ-EF 4 (Cretaceous of Canada)

Also known as Kneehills tuff zone - (Edmonton Formation) Locality 4

Where: Alberta, Canada (51.9° N, 113.0° W: paleocoordinates 59.8° N, 83.9° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Battle Formation (Edmonton Group), Maastrichtian (72.1 - 66.0 Ma)

• Bentonites from the Kneehill tuff zone have been estimated to be 66 million years old (Folinsbee, Baadsgaard and Lipson, 1961).

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; shale

• Black to brown bentonite shale, containing purplish shale and thin tuff bands near top; often white clay shale and bentonitic clayey white sand at base.

Size class: microfossils

Preservation: replaced with silica

Collection methods: surface (in situ), chemical, sieve,

• The material was passed through a set of three sieves with openings of respectively 250, 147, and 74 microns. Specimens are with the Department of Geology, University of Alberta, Edmonton.

Primary reference: P. L. Binda and S. K. Srivastava. 1968. Silicified megaspores from Upper Cretaceous beds of southern Alberta, Canada. Micropaleontology 14(1):105-113 [R. Lupia/T. Naeher/T. Naeher]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 31727: authorized by Rick Lupia, entered by Tiffany Naeher on 23.05.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Selenasporites reticulatus n. gen. n. sp.
Selenasporites reticulatus n. gen. n. sp.
type species for new genus by monotypy