Foraminiferal bioevents in the upper Campanian to lowest Maastrichtian of the Middle Vistula River section, Poland

Abstract

These events are re corded in very sim i lar strati graphic po si tions in the Lägerdorf-Kronsmoor succes sion (north ern Ger many) and in the suc ces sion of east ern Eng land and, at least some of them, in east ern Eu rope. Accord ingly they can serve as im por tant mark ers for strati graphic cor re la tion across Eu rope. The FOs of the plank tonic spe cies, Rugoglobigerina milamensis, R. hexacamerata and R. pennyi, in the up per most part of the "Inoceramus" redbirdensis Zone, are very close to the Campanian/Maastrichtian bound ary as de fined by inoceramid bi valves (Walaszczyk, 2004) and we pro pose these plank tonic foraminiferal bioevents as a good proxy for this bound ary in tem per ate re gions.

Fossil karst in the Jurassic of the Kościuszko Mound in Kraków (southern Poland): discussion

“…Un doubt edly, Campanian is the age of fauna iden ti fied in a sam ple col lected from the 1G bore hole at 18.8 m depth, also marked as Maastrichtian in fig ure 3, but left uncommented on in the text. The fauna as sem blage in cludes the foraminifer Globorotalites michelinianus (ta ble 1), which points out to a strati graphic in terval not youn ger than the Mid dle Campanian (Inoceramus tenuilineatus Zone; Peryt and Dubicka, 2015). More over, this foraminifer was de rived from sed i ment lo cated higher in el e vation than above-men tioned Abathomphalus mayaorensis (Bolli) and clos est to the ero sional top sur face of the Ju ras sic for mation.…”

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

“…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.…”

Magnetostratigraphy of the Campanian/Maastrichtian boundary succession from the Middle Vistula River section, central Poland

“…Sub sequent stud ies of the bound ary in ter val com prised macro-and microfossil groups, pri mar ily those biostratigraphically meaning ful ( Fig. 2): ammonites (B³aszkiewicz, 1980;Machalski, 1996Machalski, , 2012Remin et al, 2015), bel em nites (Kongiel, 1962;Remin, 2012Remin, , 2015Keutgen et al, 2012), inoceramids (Walaszczyk, 2004), foraminifers (Po¿aryska, 1954, Po¿aryska andPeryt, 1979;Peryt, 1980Peryt, , 2000Peryt and Dubicka, 2015), and nannofossils (GaŸdzicka, 1978;Bur nett et al, 1992). Also groups with lit tle or poorly known biostratigraphic po ten tial, but rep re sent ing dom i nant el e ments of the re cord, were in ten sively stud ied; gas tro pod and bi valve molluscs (Abdel-Gawad, 1986) or sponges (OEwierczewska-G³adysz, 2006(OEwierczewska-G³adysz, , 2012.…”

“…In the Mid dle Vistula River sec tion the new place ment of the bound ary was rec ognized based on inoceramid bi valves (Walaszczyk, 2004; see also Walaszczyk et al, 2002a, b) and ammonites (Machalski, 2012); the en tire Po¿aryski's units t and u, and lower part of his unit v were re ferred to the Maastrichtian. The bel em nite and foraminiferal prox ies of the bound ary (af ter Remin, 2012;Keutgen et al, 2012;Peryt and Dubicka, 2015) …”

“…Due to endemism/pro vin cial ism (e.g., bel em nites, ammonites) and diachroneity (e.g., ammonites, planktic foraminifera) of a num ber of biostratigraphic mark ers across the Campanian/Maastrichtian bound ary (see e.g., Bur nett, 1998;Christensen et al, 2000;Howe et al, 2003;Mutterlose et al, 2005;Ward et al, 2012;Peryt and Dubicka, 2015), there are prob lems with sim ple long-dis tance bio-cor re la tion within this in ter val. The ap pli ca tion of the o ret i cally isochronous and po ten tially very ef fec tive meth ods, in de pend ent of avail able biostratigraphies, is thus of im por tance.…”