Where: Ulyanovsk, Russian Federation (54.5° N, 48.4° E: paleocoordinates 48.1° N, 50.3° E)

• coordinate estimated from map

• hand sample-level geographic resolution

When: Speetoniceras versicolor ammonoid zone, Late/Upper Hauterivian (136.4 - 130.0 Ma)

• The precise level within the section is unknown, but the section only contains Upper Hauterivian (Lower Cretaceous) strata of the Speetoniceras versicolor Zone in this locality.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, fine-grained, pyritic, gray, argillaceous marl and lithified, concretionary, pyritic limestone

Size classes: macrofossils, mesofossils

Primary reference: V. Fischer, M. S. Arkhangelsky, I. M. Stenshin, G. N. Uspensky, N. G. Zverkov and R. B. J. Benson. 2015. Peculiar macrophagous adaptations in a new Cretaceous pliosaurid. Royal Society Open Science 2(150552) [V. Fischer/V. Fischer]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 175631: authorized by Valentin Fischer, entered by Valentin Fischer on 23.12.2015

Creative Commons license: CC BY (attribution)