Where: Ukraine (45.0° N, 35.4° E: paleocoordinates 0.0° N, 51.2° E)
• outcrop-level geographic resolution
When: Dvuyakornaya Formation, Berriasian (145.0 - 139.8 Ma)
• STRATIGRAPHIC RELATIONS: From the Dvuyakornaya Fm (Tithonian-Berriasian), which is bounded by the Khutoran and Sultanovka fms. AGE: Berriasian, on the basis of ammonite, foraminiferal, and ostracod biostratigraphy. STRATIGRAPHIC POSITION: From beds 18-23 of the Dvuyakornaya Fm.
• bed-level stratigraphic resolution
Environment/lithology: basinal (); lithified claystone
•the shelf, at depths ranging from 300–400 m and greater.
Size classes: macrofossils, mesofossils, microfossils
Preservation: cast, mold/impression
Collection methods: bulk, surface (float), surface (in situ), sieve,
• COLLECTOR: Not stated in text. REPOSITORY: Unknown.
Primary reference: V. V. Arkad'ev, A. A. Fedorova, Y. N. Savale'eva and E. M. Tesakova. 2006. Biostratigraphy of Jurassic–Cretaceous Boundary Sediments in the Eastern Crimea. Stratigraphy and Geological Correlation 14(3):302-330 [A. Hendy/A. Hendy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 162310: authorized by Austin Hendy, entered by Austin Hendy on 21.09.2014
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Cephalopoda | |
Haploceras sp. Zittel 1870 ammonite | |
Berriasella chomeracensis Toucas 1890 ammonite
Fauriella cf. floquinensis ammonite | |
"Ptychophylloceras cf. semisulcatum" = Phylloceras semisulcatum
"Ptychophylloceras cf. semisulcatum" = Phylloceras semisulcatum d'Orbigny 1842 ammonite | |
Ostracoda | |
Cypridina sp. Milne-Edwards 1840 ostracod | |
Bairdia sp. M'Coy 1844 ostracod
Bairdia "sp. A" M'Coy 1844 ostracod | |
Phodeucythere eocretacea ostracod
Mandocythere (Costacythere) frankei ostracod | |
Macrocypris "sp. B" ostracod
Macrocypris sp. ostracod | |
Eucytherura ardescae ostracod
Acrocythere alexandrae ostracod
Acrocythere cf. aspera ostracod
Acrocythere aspera ostracod | |
Palaeocytheridella teres ostracod
Schuleridea juddi ostracod | |
Cytherelloidea tortuosa ostracod
Cytherelloidea mandelstami ostracod
Cytherelloidea flexuosa ostracod | |
Tethysia chabrensis ostracod | |
Foraminifera | |
Globothalamea | |
Nodosariata | |
Foraminifera | |
Pseudocyclammina lituus Yokoyama 1890 |