Where: Karachay-Cherkessia, Russian Federation (43.9° N, 41.5° E: paleocoordinates 38.4° N, 47.5° E)
• coordinate estimated from map
When: Parkinsonia parkinsoni ammonoid zone, Upper Member (Djangura Formation), Late/Upper Bajocian (171.6 - 167.7 Ma)
• Rarecostites sherstyukovi Faunal Horizon
Environment/lithology: marine; lithified, gray mudstone
Size classes: mesofossils, microfossils
Primary reference: V. V. Mitta, Y.u. N. Savelieva, A. A. Fedorova and O. V. Shurekova. 2018. Ammonites, Microfauna, and Palynomorphs from the Lower Part of the Upper Bajocian Parkinsoni Zone of the Basin of the Bolshoi Zelenchuk River, Northern Caucasus. Stratigraphy and Geological Correlation 26(5):552-570 [A. Kocsis/N. Stilkerich]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 198643: authorized by Adam Kocsis, entered by Nina Stilkerich on 04.01.2019
Creative Commons license: CC BY (attribution)
Taxonomic list
| Dinophyceae | |
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Pareodinia ceratophora Deflandre 1947 | |
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Nannoceratopsis spiculata Stover 1966 | |
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Ellipsoidictyum cinctum Klement 1960
Batiacasphaera sp. Drugg 1970 | |
Wanaea acollaris, Meiourogonyaulax caytonensis, Meiourogonyaulax valensii, Ctenidodinium sellwoodii, Dissiliodinium sp., Endoscrinium galeritum, Chytroeisphaeridia chytroeides
Wanaea acollaris Dodekova 1975
Dissiliodinium sp. Drugg 1978
Endoscrinium galeritum Deflandre 1938
Chytroeisphaeridia chytroeides Sarjeant 1979 | |
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Micrhystridium sp. Deflandre 1937 acritarchs | |
| Foraminifera | |
Ophthalmidium kaptarenkoae, Ophthalmidium infraoolithicum, Ophthalmidium caucasicum, Kaptarenkoella epistominoides
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"Hyppocrepina guttiforme" = Hippocrepina
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| Nodosariata | |
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| Foraminifera | |
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| Reptilia | |
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| Ostracoda | |
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