Seymour Island, SI-K84 (Cretaceous of Antarctica)

Where: Antarctica (64.3° S, 56.8° W: paleocoordinates 62.5° S, 67.5° W)

When: Lopez de Bertodano Formation, Maastrichtian (72.1 - 66.0 Ma)

Environment/lithology: offshore; sandstone

Collection methods: date sample taken 1982/1984

Primary reference: D. Harwood. 1988. Upper Cretaceous and lower Paleocene diatom and silicoflagellate biostratigraphy of Seymour Island, eastern Antarctic Peninsula. Geological Society of America, Memoir 169:55-129 [C. Cervato/C. Cervato]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 57569: authorized by Cinzia Cervato, entered by Cinzia Cervato on 13.12.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Chrysophyceae
 Phytomastigophora - Dictyochaceae
Bacillariophyceae
  - Aulacodiscaceae
? Aulacodiscus sp. A. Ehrenberg 1844 diatom
 Rhizosoleniales - Rhizosoleniaceae
  -
 Coscinodiscales - Coscinodiscaceae
  -
 Centrales - Eupodiscaceae
  -
 Melosirales - Endictyaceae
 Melosirales - Melosiraceae
 Melosirales - Stephanopyxidaceae
Stephanopyxis sp. A. Ehrenberg 1845 diatom
Stephanopyxis simonseni Hajos 1974 diatom
Stephanopyxis turris Greville and Arnot 1857 diatom
Hemiaulus
  - Biddulphiaceae
Hemiaulus polymorphus Grunow 1884
Hemiaulus polymorphus v. frigida
Hemiaulus polymorphus Grunow 1884
Hemiaulus polymorphus v. morsianus
Dinophyceae
 Gonyaulacales - Gonyaulacaceae