Datuna, Dagestan (lower Tsudakhar Fm) (Jurassic of Russian Federation)

Where: Russian Federation (42.5° N, 46.6° E: paleocoordinates 37.9° N, 52.5° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Tsudakhar Formation, Garantiana (171.6 - 167.7 Ma)

• Lower Tsudakhar Formation

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified lithology not reported

Size class: macrofossils

Collection methods: Repository: Vserossiyskiy Nauchno-Issledovatel'skiy Geologicheskiy Neftyanoy Institut (VNIGRI)

Primary reference: N. V. Besnosov and V. V. Mitta. 1993. Pozdnebayosskie i Batskie Ammonitidy Severnogo Kavkaza i Sredney Azii 1-347 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 188557: authorized by Matthew Clapham, entered by Matthew Clapham on 06.09.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ammonitida - Stephanoceratidae
"Rarecostites wetzeli" = Parkinsonia wetzeli Schmidtill and Krumbeck 1931 ammonite
Rarecostites rarecostatum Buckman 1881 ammonite
Rarecostites interruptus Bruguière 1789 ammonite
Rarecostites mutabilis Nicolesco 1928 ammonite