[1] VI-VII facies were recovered on the Brody-Lubienia borehole, with a lower part exposed on the village of Śmiłów that shows a small fall of the Sea level.
0.8 m-fine grained sandstone, light gray, almost white, with a tabular diagonal layering, emphasized by accumulations of carbonated organic matter and Muscovite.
[15] The Coeval deposits of Usedom and East Prignitz on Germany contain numerous Glendonites (Calcite pseudomorphs after Ikaite), what lends support to the possibility of a Late Pliensbachian cooling event and polar Glaciation at that time.
[16] Mostly of the authors, based on the current scientific quorum and the wide distribution of Glendonites in Upper Pliensbachian strata, tend to support a glacial-derived hypothesis.
The oldest deposits of the sequence (Latest Pliensbachian-Lowermost Toarcian), partly of an age resting on a regional erosional surface, comprise alluvial and deltaic sediments assigned to a number of lithostratigraphic units of local significance.
[1] After the major marine transgression there was a visible change on Budki–Szydłowiec–Jagodne, shifting to fluvial discharge continuously moving along the Nowe Miasto–Iłża fault to the NE direction during the Pliensbachian times.
[2] On the Budki 1 borehole series of coarse-grained alluvial package (especially large scale tabular cross-bedding sets dominate and quartz pebbles association), can represent low-sinuosity braided channels.
[1][22] This sequence starts with a rise of sea level and quick drowning of the whole area, destroying the previous delta system/marsh subsystem development measured at the Brody-Lubienia borehole, that shows that the amplitude of this transgression was quite high, as is represented by a thickness of 16 m.[1][22] There are several Types off Seashore Stratification seen on the Drzewica Formation.
[1] The slightly smaller and fine built, brownish and yellow sandstones that show details Cross-bedding are related to a more alluvial deposition, probably from the influence of a local Channel.
[1] On the Main Smilów Quarry the dominant shore face depositional subsystem show detailed marks of clear Palaeocurrent directions, dispersed trough Cross-bedding inclinations that point to the West.
[26] Significant thickness, good reservoir properties and proper depth give sufficient grounds to select the Lower Jurassic sandstone levels of the Drzewica Formation.
[26] Budziszewice-Zaosie structure is one of the potential CO2 storage sites for the biggest emitter of that gas in Europe, the Bełchatów Power Plant, with the major and most perspective reservoir located on the Drzewica Formation Strata locally.
[27] Archival seismic sections subject to secondary interpretation made it possible for a more accurate mapping of the deep structure of the anticline and its definition as present state of recognition as tectonically continuous.
[31] As the latest Pliensbachian began, the climate changes to a more cold environment, as prove the presence of ice sheets on northern latitude facies of the same age.
The Main Boreholes show eustatic changes on the marine conditions, with a retreat of the sea level, leading to the appearance of vegetation and abundant pollen on the uppermost parts of the formation.
[32] The major outcrop of the formation, found on the Śmiłów Quarry represents a nearshore, deltaic, barrier-lagoonal ecosystem, where the biota left a high report of footprints (+200), with different sizes, that range from small to large animals of various groups.
They can occur in large aggregates, where occasionally traces present on agglomerations show a clear orientation, probably parallel to the palaeocurrent direction, which is associated with locomotion of the burrowing animal.
Diverse and correlated with freshwater deposits on the Hettangian-Sinemurian of Bavaria Cardinia[20][21][37][38] Shells A Saltwater/blackish cockle, type member of the family Cardiniidae inside Carditida.
[40] In this case, the rocks that hosted the specimen also have poorly preserved dinoflagellate cysts, belonging to the genus Mendicodinium, that cannot expose its age beyond Late Pliensbachian.
The local Phyllopods are related with a great amount of freshwater debris (especially plants), and suggest seasonal changes in the rivers on the Pliensbachian-Toarcian Polish Basin.
Resemble creatures such as Sinoconodon, Morganucodonta such as Erythrotherium, Megazostrodon or Dinnetherium; more advanced mammaliformes, such as members of Haramiyida, including arborear forms such as Shenshou.
Small to medium slender primitive predatory dinosaurs, related with genera such as Liliensternus, Tachiraptor, Zupaysaurus, Procompsognathus or contemporaneous taxa such as the North American Segisaurus.
[1] This flora comes from layers of the also Pliensbachian Gielniów Formation (Polish: seria gielniowska)[5] (Marginal Brackish), yet is very likely derived from the coeval Drzewica Formation deposits (Coeval coastline) of the Subsequence V. This flora includes at least 30 species: Neocalamites hoerensis (Calamitaceae Equisetales, also found on the Podkowiński Quarry); Laccopteris angustiloba & Phlebopteris muensteri (Matoniaceae ferns); Dictyophyllum acutilobum, Hausmannia crenata, Clathropteris meniscoides & Thaumatopteris schenkii (Dipteridaceae Ferns); Todites williamsonii & Cladophlebis denticulata (Osmundaceae ferns); Pterophyllum subaequale & Nilssonia orientalis/acuminata/simplex (Bennettitales, with Nilssonia being dominant like in the Lublin Floras); Ctenis nilssoni (Cycads); Sagenopteris nilssoniana (Caytoniaceae Seed Ferns); Ginkgoites marginatus (Ginkgos); Ixostrobus siemiradzkii & Czekanowskia nathorstii/setacea (Czekanowskiales Ginkgoopsids); Hirmeriella muensteri (Cheirolepidiaceae conifers); Schizolepis follini/moelleri/braunii & Palissya sp.
[57] This Megaspore section of relatively poor compared with the lower and upper sections, with the lower boundary of the level is determined by the appearance of the indicator species Horisporites planatus (Selaginellaceae) and The upper limit of the level is marked by the appearance of continuous occurrences of Paxillitriletes phyllicus (Isöetaceae), indicating more humid conditions, and Erlansonisporites sparassis (Selaginellaceae).
[57] In the Polish profiles, the Pl level correlates with the upper part of Rogalska's 1st phase as well as the 2nd and 3rd microflora phase, where the following indicator miospores appear: Lycopodiumsporites gristhorpensis (Lycopodiaceae), Undulatisporites undulapolus (Filicopsida) and Applanopsipollenites segmentatus (Gymnospermopsida), and in central Poland represents the works of the Upper Sinemurian and the whole Pliensbachian, being probably correlated with the middle part of the miospore level Cerebropollenites macroverrucosus (Coniferophyta), distinguished in the Pliensbachian and Toarcian deposits in northern Europe.
[57] The Drzewica Formation palynoflora is recovered mostly on the Gutwin and Brody-Lubienia boreholes, and includes the next plant groups: Bryophyta, Lycopodiaceae, Equisetaceae, Selaginellaceae, Cyatheaceae, Dipteridaceae, Dicksoniaceae, Gleicheniaceae, Matoniaceae, Osmundaceae, Schizeaceae, Peltaspermaceae, Taxodiaceae, Cheirolepidiaceae, Araucariaceae, Podocarpaceae, Pinaceae, Gnetales, Cycadidae, Bennettitales and Ginkgoales.
), what indicate a clear active river influx, yet has also evidence of marine ingressions due to the presence of saltwater acritarchs (Psophosphaera coniferoides, Leiosphaeridia sp.).
[58] Beyond proper palynogy, biomass associated has been recovered, specially on the Brody-Lubenia borehole, with abundance of C29 diasterenes (>70%), that proves a great contribution of land plants and thus terrestrial deposits nearby.
Matonia braunii represents the second major plant fossil identified on the Drzewica formation Dunar settings, it probably formed monotypic stands on coastal dunes, suggesting a wide ecological amplitude that extant related ferns.
[64] With leaves of 5–25 cm long and about 2–5 mm wide, and an angle between them and the short main axis ranges within 20-30°, This taxon has a morphology that resembles Schizeacean ferns (Specially Schizaea pectinata), but also that of the Voltziales Aethophyllum stipulare from Anisian of France (A Herbaceous Conifer From the Triassic).