Horton River, District Mackenzie, NWT, C-8619, >25 µm (Cretaceous of Canada)

Where: Northwest Territories, 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

Size class: macrofossils

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 57627: authorized by Cinzia Cervato, entered by Cinzia Cervato on 13.12.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Bacillariophyceae
  -
Bacillariophyceae indet. Haeckel 1878 diatom
 Coscinodiscales - Heliopeltaceae
 Coscinodiscales - Coscinodiscaceae
  -
Pseudopyxilla cf. rossica diatom
Pseudopyxilla sp. Cf. P. rossica
 Melosirales - Stephanopyxidaceae
  -
 Paraliales - Paraliaceae
Paralia sulcata Ehrenberg 1838 diatom
  -
 Centrales -
Sheshukovia sp. 1 Gleser 1975 diatom
Hemiaulus
  - Biddulphiaceae
Gastropoda
 Sorbeoconcha - Rostellariidae
Aulacodiscus septus Schmidt 1876 snail
Aulacodiscus septus f. quattuorradiata
Aulacodiscus septus Schmidt 1876 snail
Aulacodiscus septus f. septus