S12-1-DHH-178-305-324.5 Yakoun River, Graham Island (Jurassic of Canada)

Where: British Columbia, Canada (53.4° N, 132.3° W: paleocoordinates 0.6° N, 127.2° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Sandilands Formation (Kunga Group), Late/Upper Sinemurian (196.5 - 189.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: basinal (); lithified limestone and lithified siltstone

• limestone sample in thinly bedded siltstones interbedded with minor beds of grey siliceous tuff, lithic sandstone, and shale

Size class: microfossils

Collection methods: core,

Primary reference: E. S. Carter, P. A. Whalen, and J. Guex. 1998. Biochronology and paleontology of Lower Jurassic (Hettangian and Sinemurian) radiolarians, Queen Charlotte Islands, British Columbia. Geological Survey of Canada Bulletin (496)1-162 [A. Miller/K. Layou/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 94416: authorized by Wolfgang Kiessling, entered by Uta Merkel on 19.02.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Protozoa
 Spumellaria - Angulobracchiidae
Paronaella cf. corpulenta
Paronaella cf. corpulenta De Wever 1981 radiolarian
 Spumellaria -
Beatricea christovalensis
Beatricea christovalensis Carter et al. 1998 radiolarian
 Nassellaria - Bagotidae
Canutus blomei, Droltus laseekensis
Canutus blomei Pessagno and Whalen 1982 radiolarian
Droltus laseekensis Pessagno and Whalen 1982 radiolarian
 Nassellaria - Hsuidae
Parahsuum simplum
Parahsuum simplum Yao 1982 radiolarian
 Nassellaria - Syringocapsidae
Katroma irvingi
Katroma irvingi Carter et al. 1998 radiolarian