A new scheme of the stratigraphy and correlation of the Upper Triassic–Middle Jurassic Lozovoe zone of the Crimean Mountains based on spore–pollen data, the mineral composition of clastic and clay rocks, climate and volcanic events, facies and thickness analysis, and a general paleogeographic analysis is described. It is shown that the Lozovsky zone is not a tectonic melange. The complex structural–facies pattern is explained by consedimental tectonics, the presence of at least two olistostrome complexes in the sequence, and subsequent diverse deformations.

The position of the Chenka Sequence in the section, original data on its clay minerals, facies and structural parageneses with consideration of volcanic and climatic events, as well as the available published information provide grounds for accepting it as Pliensbachian-Toarcian in age. It is shown that the Chenka sandstones are a facies or group of facies deposited in deltaic-plain or delta-front environments and that it cannot be ranked as an autonomous formation or other stratigraphic unit.

Pollen grains of Classopollis Pflug from the Cretaceous deposits of Lebanon were studied by means of light and electron microscopy. Ultrastructurally, they are similar to pollen grains, extracted from Classostrobus comptonensis Alvin, Spicer et Watson from the Barremian of England. The differences concern the shape and size of spinules, ultrastructure of apertural regions, and preservation of the endexine. An analysis of our data and published results revealed three types of infratectum existed in members of Circumpolles: (1) with branchy elements, (2) with columella-like non-branching elements, and (3) with large granules arranged in one row. The palynological assemblage is described in detail; problems of dating are discussed.

Four species of a new genus, Chomsiipites—Ch. libanicus sp. nov., Ch. pyriformis sp. nov., Ch. dzyubae sp. nov., and Ch. zaklinskaiae (Azèma et Boltenhagen) comb. nov.—are described from the Albian-Cenomanian of western part of Central Lebanon, Eastern Caspian Region, Albian-Turonian of Gabon, and Albian-Senonian of Angola (Equatorial Africa).

An assemblage of calcareous foraminifers (including the planktonic species), which was distinguished for the first time in the Paramonovo Formation of the Moscow region, suggests that the stratigraphic position of the unit corresponds to the terminal Albian (Vraconian), and likely, to basal Cenomanian. The sedimentological features and ecological type of fauna indicate that the initial basin depth of about 90-100 m decreased later to 40-50 m, as follows from the appearance of tempestites in the section. Sediments of the Paramonovo Formation mark the terminal Albian transgression spread over the Russian platform, when the sea level rose up to +240 m. Comparable amplitudes of sea-level rise were recorded only for the Oxfordian and late Santonian-early Campanian transgressions. The ''Paramonovo event'' of that high sea-level stand is also traceable in Western Europe.