Where: Russian Federation (70.0° N, 50.0° E: paleocoordinates 64.2° N, 43.8° E)
• coordinate estimated from map
• hand sample-level geographic resolution
When: Early/Lower Tithonian to Early/Lower Tithonian (150.8 - 145.0 Ma)
• Middle Volgian (panderi zone)
• bed-level stratigraphic resolution
Environment/lithology: deep subtidal; lithified, cherty/siliceous claystone
Size class: microfossils
Collection methods: bulk, chemical,
Primary reference: V. S. Vishnevskaya and B. L. Murchey. 2002. Climatic affinity and possible correlation of some Jurassic to Lower Cretaceous radiolarian assemblages from Russia and North America. Micropaleontology 48(S1):89-111 [W. Kiessling/W. Kiessling/W. Kiessling]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 51297: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 02.06.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
| Protozoa | |
Parvicingula cf. obstinata, Parvicingula rothwelli, Parvicingula cf. jonesi, Praeparvicingula rothwelli, Praeparvicingula aff. sencilla
Parvicingula cf. obstinata radiolarian
Parvicingula rothwelli radiolarian
Parvicingula cf. jonesi Pessagno 1977 radiolarian
Praeparvicingula rothwelli radiolarian
Praeparvicingula aff. sencilla radiolarian | |
|
Williriedellum cf. ruesti Tan Sin Hok 1927 radiolarian | |
|
? Orbiculiforma retusa radiolarian | |