This study is the first of a series of works on trigoniids (Class Bivalvia) from the Lower Cretaceous of the Crimea. It contains systematic descriptions of nine genera and 15 species and subspecies of trigoniids from the ...
Six new species and one subspecies of the family Trigoniidae (Bivalvia) are described: Trigonia carinata crimica and Myophorella tonasensis from the Berriasian of the Crimea, Rutitrigonia balaklavensis and Pterotrigonia ...
The Berriasian section outcropping in the right-hand side of the Bel'bek River valley (southwestern Crimea) is described. The lithological and paleontological characteristics of 10 members recognized in the section are ...