Where: Bulgaria (43.6° N, 25.0° E: paleocoordinates 23.7° N, 22.3° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Sanadinovo Formation, Early/Lower Cenomanian (99.6 - 93.5 Ma)

• Previously, Nachev and Nikolov (1961) and Nikolov and Nachev (1962) had listed the ammonites Mantelliceras mantelli (J. Sowerby), Mantelliceras martimpreyi (Coquand), and the echinoid Discoidea cylindrica (de Lamarck) (= Camerogalerus cylindricus) from correlative strata in the Pleven district. Unfortunately, the ammonite material recorded by these authors is now lost. In a recent, Middle Cenomanian ammonites, Kennedy and Jolkicev (2004) were unable to confirm the presence of the Mantelliceras mantelli Zone in the lowest portion of the Sanadinovo Formation. However, according to Jolkicev et al. (1988) and Stojanova-Vergilova (pers. comm. 2004), the belemnite assemblage (see above) clearly indicates an Early Cenomanian age for Bed 5. Microfossil studies by Jolkicev et al. (1988) document the Thalmanninella appenninica appenninica foraminiferal zone, while Sinnyovski and Shumenko (1988) recorded the Eiffelithus turriseiffeli nannoplankton zone, and Pavlishina (1990) described the Litosphaeridium siphoniphorum dinocyst zone from the section exposed at Novachene.

• bed-level stratigraphic resolution

Environment/lithology: offshore; poorly lithified, glauconitic, gray, white marl

Size class: macrofossils

Preservation: original calcite

Collection methods: bulk, surface (in situ),

• Repository: National Museum of Natural History in Sofia (NMNHS); a few specimens at Institute of Paleobiology, Polish Academy of Sciences, Warszawa (ZPAL)

Primary reference: M. A. Bitner and N. Motchurova-Dekova. 2005. Brachiopods from the Sanadinovo Formation (Lower Cenomanian) in northern Bulgaria. Cretaceous Research 26:525-539 [S. Peters/S. Peters]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 55346: authorized by Shanan Peters, entered by Shanan Peters on 11.10.2005

Creative Commons license: CC BY (attribution)