GSC loc. C-080588, Graham Island (Jurassic of Canada)

Where: British Columbia, Canada (53.4° N, 132.3° W: paleocoordinates 6.1° N, 126.1° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Graham Island Formation (Yakoun Group), Early/Lower Bajocian (171.6 - 168.4 Ma)

• Informal Radiolarian Zone 7 (begins with Ovalis and end within Laeviuscula Ammonite Zone); meters indicate distance from base of Graham Island Fm

• bed-level stratigraphic resolution

Environment/lithology: offshore; lithified, gray, calcareous siltstone

• deep water that was commonly euxinic
• lithology of sample: buff coloured sandy limestone (fine grained calcarenite)

•lithology of sample/(sequence): upper Toarcian sandstone overlain by interbedded buff coloured tuffaceous sandstone, light gray pelletal siltstone and shale with minor sandy limestone

Size class: microfossils

Reposited in the GSC

• collected by B.E.B. Cameron, 1982; focus on radiolarians

Primary reference: E.S. Carter, B.E.B. Cameron, and P.L. Smith. 1988. Lower and Middle Jurassic radiolarian biostratigraphy and systematic paleontology, Queen Charlotte Islands, British Columbia. Geological Survey of Canada, Bulletin 386:1-109 [W. Kiessling/T. Schossleitner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 71117: authorized by Wolfgang Kiessling, entered by Thomas Schossleitner on 19.04.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

• rare: 1-2 specimens; common: 3-6 specimens; abundant: >6 specimens
Show authors, comments, and common names
unclassified
  -
Lophodictyotidium cf. sarjeanti
Protozoa
 Nassellaria - Hsuidae
Hsuum aff. belliatulum, Hsuum aff. mirabundum
Hsuum aff. belliatulum Pessagno and Whalen 1982 radiolarian
Hsuum aff. mirabundum Pessagno and Whalen 1982 radiolarian
 Nassellaria - Eucyrtidiidae
? Eucyrtidium "sp. A", Stichocapsa cf. convexa, Stichocapsa aff. japonica
? Eucyrtidium "sp. A" Ehrenberg 1847 radiolarian
Stichocapsa cf. convexa Yao 1979 radiolarian
Stichocapsa aff. japonica Yao 1979 radiolarian
 Nassellaria - Parvicingulidae
"Parvicingula aff. profunda" = Praeparvicingula profunda, "Parvicingula aculeata" = Praeparvicingula aculeata, Parvicingula aff. burnensis, Parvicingula "sp. B", Parvicingula "sp. D", "Parvicingula ex gr. boesii" = Tethysetta boesii
"Parvicingula aff. profunda" = Praeparvicingula profunda Pessagno and Whalen 1982 radiolarian
"Parvicingula aculeata" = Praeparvicingula aculeata Carter et al. 1988 radiolarian
Parvicingula "sp. B" Pessagno 1977 radiolarian
Parvicingula "sp. D" Pessagno 1977 radiolarian
"Parvicingula ex gr. boesii" = Tethysetta boesii Parona 1890 radiolarian
 Nassellaria - Williriedellidae
Tricolocapsa cf. rusti
 Nassellaria - Ultranaporidae
Napora horrida
Napora horrida radiolarian
 Entactinaria - Eptingiidae
"Protoperispyridium hippaensis n. sp." = Perispyridium hippaense
"Protoperispyridium hippaensis n. sp." = Perispyridium hippaense Carter et al. 1988 radiolarian
 Spumellaria - Hagiastridae
Pseudocrucella "sp. B", Pseudocrucella sanfilippoae
Pseudocrucella "sp. B" Baumgartner 1980 radiolarian
Pseudocrucella sanfilippoae Pessagno 1977 radiolarian
 Spumellaria - Praeconocaryommidae
Praeconocaryomma aff. californiensis, Praeconocaryomma aff. universa
Praeconocaryomma aff. universa Pessagno 1976 radiolarian
 Spumellaria - Patulibracchiidae
"Homeoparonaella aff. elegans" = Homoeoparonaella
"Homeoparonaella aff. elegans" = Homoeoparonaella radiolarian
 Spumellaria - Orbiculiformidae
Spongostaurus pugiunculus, Spongostaurus "sp. A"
Spongostaurus "sp. A" Haeckel 1882 radiolarian
 Spumellaria - Angulobracchiidae
Paronaella tlellensis, ? Paronaella denudata
? Paronaella denudata Rüst 1898 radiolarian
 Spumellaria - Emiluviidae
Emiluvia acantha, Emiluvia "sp. E", Emiluvia aff. pessagnoi
Emiluvia acantha radiolarian
Emiluvia "sp. E" Foreman 1973 radiolarian
Emiluvia aff. pessagnoi Foreman 1973 radiolarian