Pokrov (Oligocene) (Oligocene of Ukraine)

Where: Nikopolskyi, Ukraine (47.7° N, 34.1° E: paleocoordinates 47.8° N, 30.5° E)

• coordinate estimated from map

When: P18 foram zone, Borysthenic Formation, Rupelian (33.9 - 28.1 Ma)

• Planorbella horizon of the Borysthenic Formation

•It is characterized by the presence of a diverse assemblage of planktonic foraminifers, including Spiroplectammina carinata oligocenica Nikitina

•which is indicative of Zone P18 (Ryabokon 2013). The calcareous nannoplankton of the sub-ore layer (i.e. glauconitic sands with fossils) is indicative of Zone NP 22 (Zernetskyy and Riabokon 2013).

Environment/lithology: marine; glauconitic, gray, sandy claystone

• light grey sandy clays and glauconitic sands under the manganese ore layer

Size class: macrofossils

Primary reference: I. H. Pidoplichko. 1956. Materialy do vyvchennia mynulykh faun USSR 1-234 [M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 183531: authorized by Mark Uhen, entered by Mark Uhen on 04.01.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Spiroplectammina
  - Spiroplectamminidae
Spiroplectammina carinata
subspecies oligocenica
Bivalvia
 Pectinida - Pectinoidae
"Pecten arcuatus" = Camptonectes (Camptonectes) auritus Schlotheim 1813 scallop
 Cardiida - Arcticidae
"Cyprina cf. perovalis" = Arctica
"Cyprina cf. perovalis" = Arctica clam
Chondrichthyes
 Lamniformes - Lamnidae
Carcharodon turgidus Agassiz 1843 white shark
 Lamniformes - Odontaspididae
Carcharias sp. Rafinesque 1810 sand shark
 Hexanchiformes - Hexanchidae
"Notidanus primigenius" = Notorhynchus primigenius
"Notidanus primigenius" = Notorhynchus primigenius Agassiz 1843 sevengill shark
Mammalia
 Sirenia - Dugongidae
Dugongidae indet. Gray 1821 dugong