Where: Russian Federation (49.4° N, 137.3° E: paleocoordinates 53.9° N, 148.9° E)
• coordinate estimated from map
• hand sample-level geographic resolution
When: Late/Upper Pliensbachian to Late/Upper Pliensbachian (189.6 - 174.1 Ma)
• Age based on radiolarians
• bed-level stratigraphic resolution
Environment/lithology: basinal (siliceous); lithified, red chert
Size class: microfossils
Preservation: original silica
Collection methods: chemical, hydroflouric,
Primary reference: I. M. Popova, P. O. Baumgartner, A. N. Filippov and A. I. Khanchuk. 1999. Jurassic and Early Cretaceous Radiolaria of the Lower Amurian Terrane: Khabarovsk region, Far East of Russia. The Island Arc 8(4):491-522 [W. Kiessling/W. Kiessling/W. Kiessling]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 51575: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 08.06.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Protozoa | |
Katroma sp. Pessagno and Poisson 1981 radiolarian
Katroma aff. clara Yeh 1987 radiolarian | |
Parahsuum aff. izeense Pessagno and Whalen 1982 radiolarian | |
Orbiculiforma sp. Pessagno 1973 radiolarian |