Where: Uzbekistan (37.7° N, 66.6° E: paleocoordinates 36.5° N, 72.3° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Retrocostatum ammonoid zone, Tangiduval Formation, Late/Upper Bathonian (167.7 - 164.7 Ma)
• 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 188482: authorized by Matthew Clapham, entered by Matthew Clapham on 04.09.2017
Creative Commons license: CC BY (attribution)
Taxonomic list
| Cephalopoda | |
Homeoplanulites (Homeoplanulites) rotundatus, Homeoplanulites (Homeoplanulites) evolutus n. sp., Gracilisphinctes (Prevalia) stephanovi n. sp.
Homeoplanulites (Homeoplanulites) rotundatus Roemer 1911 ammonite Listed as Tangiduval-Baisun boundary beds in text
Homeoplanulites (Homeoplanulites) evolutus n. sp. Besnosov 1993 ammonite
Gracilisphinctes (Prevalia) stephanovi n. sp. Besnosov 1993 ammonite | |