Turonian (Upper Cretaceous) inoceramid bivalves of the genus Mytiloides from the Sredna Gora Mountains, north-western Bulgaria

Abstract

(Tröger, 1967) and M. carpathicus (Simionescu, 1899). Mytiloides incertus and Mytiloides scupini are index species for the eponymous Upper Turonian inoceramid biozones.

Turonian–Coniacian (Upper Cretaceous) of the Babadag Basin (North Dobrogea, Romania): integrated biostratigraphy and microfacies succession

“…lamarcki Par kin son, 1818, Mytiloides striatoconcentricus (Gümbel, 1868) and Inoceramus perplexus Whitfield, 1877. This as sem blage is in dic a tive of the lower part of the Up per Turonian (e.g., Ernst et al, 1983;Walaszczyk and Cobban, 2000;Ken nedy and Gale, 2015;Dochev, 2015;Walaszczyk et al, 2016b). The as sem blage also yielded Inoceramus ex gr.…”

Bone histology reveals the first record of titanosaur (Dinosauria: Sauropoda) from the Late Cretaceous of Bulgaria

“…More recently, Marinova et al (2010) suggested that the volcano-sedimentary sequence outcropping in the studied area constitute a half-graben structure, with monocline of Turonian and "Senonian" sediments dipping in northeastern direction. Using data from inoceramid bivalves and ammonites, Dochev (2006Dochev ( , 2009Dochev ( , 2015 and Dochev and Ivanov (2008) provide the first detailed paleontological and biostratigraphic studies for this and adjacent parts of the Western Srednogorie. Sinnyovsky et al (2012Sinnyovsky et al ( , 2013 proposed the first formal lithostratigraphic scheme for the volcano-sedimentary sequences in the Western Srednogorie Zone, one we employ in the current study.…”

“…While Dochev (2009) did not do any studies on the fine-grained terrigenous sediments with coal interbeds exposed in this part of the Western Srednogorie, Dochev (2009Dochev ( , 2015 suggested middle Turonian-lower Coniacian age for the first 100 m of the exposed in the gully sediments (Izvor Formation), based on biostratigraphic data derived from inoceramid bivalves. Moreover, the sedimentary rocks cropping-out in the vicinity of the hamlet of Manish (Figure 1.2) (Melove and Rezhantsi formations) span the interval uppermost Coniacian-?lower Campanian (Dochev, 2009;Dochev and Ivanov, 2008).…”