Late Maastrichtian cephalopods, dinoflagellate cysts and foraminifera from the Cretaceous–Paleogene succession at Lechówka, southeast Poland: Stratigraphic and environmental implications

The late Maastrichtian Belemnella kazimiroviensis group (Cephalopoda, Coleoidea) in the Middle Vistula valley (Poland) and the Maastricht area (the Netherlands, Belgium) – taxonomy and palaeobiological implications

“…The uppermost Maastrichtian was also accessible at Lechówka near Chełm, where a complete shallow-marine succession across the K-Pg boundary was exposed. Again, ammonites were recovered, but no belemnites (Racki et al, 2011;Machalski et al, 2016).…”

Dinoflagellate cysts and palynofacies across the Cretaceous-Paleogene boundary interval of the Vrancea Nappe (Eastern Carpathians, Romania)

“…Com pared to the other sec tions from the Tethyan realm, shows also more sim i lar i ties with the Maastrichtian dinocysts as sem blage from south east ern Czech Re pub lic (Carpathian do main ;Gedl, 2004) than with the as sem blage from south-east Po land (west ern part of the East Eu ro pean Plat form; Machalski et al, 2016), which was con sid ered to be char ac teris tic of Bo real prov ince, due to the high abun dance of the cold wa ter taxon, such as Palynodinium grallator. The most im portant dif fer ences ob served, com pared to the as sem blage quoted from the Czech Carpathians, con sists in the fact that the Palyno dinium grallator dis ap pears ear lier (up per most Maastrichtian) in the stud ied sec tion, prob a bly due to dif fer ent palaeoenvironmental con di tions.…”

Integrated biostratigraphy of the Santonian through Maastrichtian (Upper Cretaceous) of extra-Carpathian Poland

“…Twenty-eight benthic foraminiferal zones, corresponding to an interval from the middle Coniacian (Volviceramus involutus Zone) up to the end of the Maastrichtian (Hoploscaphites constrictus johnjagti Zone sensu Machalski 2005a), are distinguished based on the material from more than 50 sections, published in Dubicka and Peryt 2011, 2016Dubicka 2015;Jurkowska et al 2015;Machalski et al 2016;Peryt and Dubicka 2016 (see Text-figs 3, 4). The foraminiferal zones are correlated against the macrofossil zonations of Błaszkiewicz (1980), Walaszczyk (1997Walaszczyk ( , 2004, Jagt et al (2004), Remin, (2012Remin, ( , 2015, and Jurkowska (2016), recognized in the same outcrops (Text- fig.…”

“…Unfortunately, the zonation worked out on the borehole material was not directly correlated to the macrofossil standard zonation and consequently, its chronostratigraphic interpretation was difficult. The recent restudy of selected sections with well-constrained chronostratigraphy (Dubicka 2012(Dubicka , 2015Peryt 2011, 2012a, b;, 2016Jurkowska et al 2015;Peryt and Dubicka 2015;Machalski et al 2016) allowed for the precise and rigorous correlations between micro-and macrofossil zonations. The summary on the recent development in the benthic foraminiferal zonation and its correlation to the chronostratigraphic standard is presented below.…”

“…The zone corresponds to the upper part of the Hoploscaphites constrictus crassus and Hoploscaphites constrictus johnjagti ammonite zones. It is exposed in the quarries of Kazimierz Dolny and Nasiłów in the Middle Vistula River section, and in the Mełgiew and Lechówka sections of the Lublin Upland (see Peryt and Dubicka 2012;Machalski et al 2016).…”