Kyafar River basin, sample 16-2-3-4 (Jurassic of Russian Federation)

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 subarietis 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 198673: authorized by Adam Kocsis, entered by Nina Stilkerich on 05.01.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Squamata -
Durotrigia daveyi lizard
Bailey 1987
Ostracoda
  -
Tethysia cf. bathonica ostracod
Abundance: 1
Tethysia bathonica ostracod
Abundance: 1
Tethysia nuda ostracod
Abundance: 2
 Platycopida - Cytherellidae
Cytherella sp. Jones 1849 ostracod
Abundance: 5
Cytherella ex gr. limpida ostracod
Abundance: 1
 Podocopida -
Palaeocytheridea sp. ostracod
Abundance: 4
 Podocopida - Cytheruridae
Eucytherura sp. ostracod
Abundance: 3
Eucytherura "sp. 6" ostracod
Abundance: 1
Eucytherura aff. argentina ostracod
Abundance: 1
Cytheropteron sp. Sars 1866 ostracod
Abundance: 2
Eocytheropteron sp. Alexander 1933 ostracod
Abundance: 3
Eocytheropteron "sp. 1" Alexander 1933 ostracod
Abundance: 1
 Podocopida - Candonidae
Paracypris sp. Sars 1866 ostracod
Abundance: 4
  -
Infracytheropteron torosum ostracod
Abundance: 1
Infracytheropteron pseudoelegans ostracod
Abundance: 1
Tubothalamea
 Miliolida - Nubeculariidae
Nubecularia spp.
Abundance: 4
 Miliolida - Hauerinidae
Quinqueloculina spp. d'Orbigny 1826
Abundance: 2
Foraminifera
  -
Ophthalmidium caucasicum Antonova 1958
Abundance: 6
 Textulariina - Hippocrepinidae
Hippocrepinidae indet. Rhumbler 1895
Abundance: 15
 Astrorhizacea - Psammosphaeridae
Stegnammina spp.
Abundance: 25
 Astrorhizacea - Rhizamminidae
Rhizammina indiviza
Abundance: 3
 Trochamminacea - Trochamminidae
Trochammina chodzica
Abundance: 3
 Ammodiscoidea - Saccamminidae
Saccamminidae indet. Brady 1884
Abundance: 25
 Ammodiscoidea - Ammodiscidae
Ammodiscus spp. Reuss 1862
Abundance: 1
Ammodiscus incognitus
Abundance: 1
Ammolagena longa
Abundance: 2
 Ceratobuliminacea -
Ceratobuliminacea indet. Cushman 1927
Abundance: 12
  -
Garantella caucasica
Abundance: 4
 Lituolida - Lituolidae
Textularia jurassica Guembel 1862
Abundance: 2
Verneuilinoides micrus
Abundance: 3
  -
Nodosariata
 Robertinida - Ceratobuliminidae
 Vaginulinida - Vaginulinidae
Lenticulina perlucida
Abundance: 1
Lenticulina spp. Lamarck 1804
Abundance: 3
 Polymorphinida - Polymorphinidae
Ramulina spp.
Abundance: 4
Eoguttulina spp.
Abundance: 2
 Nodosariida - Nodosariidae
Dentalina spp. d'Orbigny 1826
Abundance: 4
Astacolus caucasicus
Abundance: 4
Astacolus spp. de Montfort 1808
Abundance: 4
Astacolus vassilenkoae
Abundance: 4
Citharina spp. d'Orbigny 1839
Abundance: 1
Foraminifera
 Spirillinina - Spirillinidae
Spirillina spp. Reuss 1862
Abundance: 4
 Life -
Micrhystridium sp. Deflandre 1937 acritarchs
Dinophyceae
  - Nannoceratopsiaceae
 Gonyaulacales - Gonyaulacaceae
 Gonyaulacales -
Valensiella ovulum Eisenack 1963
 Dinoflagellata -