Horton River, District Mackenzie, NWT, C-8625, <25 µm (Cretaceous of Canada)

Where: Canada (69.5° N, 127.0° W: paleocoordinates 77.8° N, 66.8° W)

When: Mason River Formation, Campanian (83.6 - 72.1 Ma)

Environment/lithology: offshore; shale

Primary reference: P. M. Tapia and D. M. Harwood. 2002. Upper Cretaceous diatom biostratigraphy of the Arctic archipelago and northern continental margin, Canada. Micropaleontology 48(4):303-342 [C. Cervato/C. Cervato]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 57657: authorized by Cinzia Cervato, entered by Cinzia Cervato on 13.12.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Meristiosolen sp. 1
Hemiaulus
  - Biddulphiaceae
Hemiaulus curvatulus, Hemiaulus sporalis
Bacillariophyceae
  -
Bacillariophyceae indet.
Bacillariophyceae indet. Haeckel 1878 diatom
 Coscinodiscales - Heliopeltaceae
Actinoptychus tenuis
  -
Pterotheca aculeifera, Pterotheca cretacea, Pseudopyxilla cf. rossica, Trochosiropsis polychaeta
Pseudopyxilla cf. rossica diatom
Pseudopyxilla sp. Cf. P. rossica
 Melosirales - Stephanopyxidaceae
Stephanopyxis dissonus, Stephanopyxis simonseni, Stephanopyxis turris
Stephanopyxis simonseni Hajos 1974 diatom
Stephanopyxis turris Greville and Arnot 1857 diatom
  -
Trinacria indefinita
 Paraliales - Paraliaceae
Paralia sulcata
Paralia sulcata Ehrenberg 1838 diatom
 Centrales -
Basilicostephanus sp. 1
Basilicostephanus sp. 1 Gersonde and Harwood 1990 diatom
  -
Goniothecium odontella