Kotick Point Formation - Stoneley Point (Cretaceous to of Antarctica)

Where: Antarctica (63.9° S, 58.1° W: paleocoordinates 64.7° S, 48.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Kotick Point Formation, Aptian to Aptian (125.0 - 100.5 Ma)

• formation-level stratigraphic resolution

Environment/lithology: submarine fan; poorly lithified, muddy mudstone

• The Kotick Point Formation is interpreted as representing slope-apron and submarine fan deposits sourced from the western, fault-bounded basin margin.
• The formation is poorly lithified in places and has been intensively bioturbated; graded bedding and concretions are common throughout and parallel and ripple cross lamination are well developed. A notable additional feature of the formation is the widespread occurrence of small- to giant-sized allochthonous blocks of Nordenskjöld Formation. The base of the formation is not exposed and the upper mudstone-dominated strata are overlain conformably by the sandstones and conglomerates of the Whisky Bay Formation.

Size class: microfossils

• Other: Palynomorphs

Preservation: soft parts, original sporopollenin

Collection methods: bulk, chemical, hydrochloric, hydroflouric,

Primary reference: J. B. Riding and J. A. Crame. 2002. Aptian to Coniacian (Early–Late Cretaceous) palynostratigraphy of the Gustav Group, James Ross Basin, Antarctica. Cretaceous Research (23)739-760 [C. Jaramillo/P. Santamarina]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 150205: authorized by Carlos Jaramillo, entered by Patricio Santamarina on 04.09.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Dinophyceae
  -
Diconodinium pusillum, Diconodinium psilatum, Diconodinium cristatum, Prolixosphaeridium conulum
Diconodinium psilatum Morgan 1977
Diconodinium cristatum Cookson and Eisenack 1974
  - Pareodiniaceae
Batioladinium jaegeri
Batioladinium jaegeri Brideaux 1975
 Gonyaulacales - Ceratiaceae
Muderongia tetracantha, Odontochitina singhii, Aptea polymorpha
Odontochitina singhii Morgan 1980
Aptea polymorpha Eisenack 1958
 Gonyaulacales - Areoligeraceae
Canningia "sp. A"
Canningia "sp. A" Cookson and Eisenack 1960
 Gonyaulacales -
Dingodinium cerviculum
Dingodinium cerviculum Cookson and Eisenack 1958
  -
Endoceratium turneri
Endoceratium turneri Stover and Evitt 1978
 Dinoflagellata -
Canninginopsis denticulata, Canninginopsis intermedia
Canninginopsis denticulata Cookson and Eisenack 1962