Latest Cretaceous leaf floras from southern Poland and western Ukraine

Abstract

Latest Cretaceous (Campanian to Maastrichtian) leaf floras are described from 33 outcrops ranging from the southern border of the Holy Cross Mountains (southern Poland) through the Roztocze region (south−eastern Poland) to the vicinity of L'viv (western Ukraine Leptosporangiatae, Debeya, palaeobotany, taxonomy, Campanian, Maastrichtian, Cretaceous, Poland, Ukraine. Adam T. Halamski [ath@twarda.pan.pl

The Coniacian leaf flora from the northeastern part of the Bohemian Cretaceous Basin

“…-The material studied consists of leaf imprints in hard quartzitic sandstones. The imprints are darker than the matrix rock, which is probably caused by the bacteria-mediated iron oxides deposition (see Halamski 2013). The preservation of the material in coarse psammites is far from excellent.…”

“…12), whereas the Česká Lípa site, if located in more open sea, must not have experienced such strong and destructive water strength. The late Campanian Krasnobród site in southeastern Poland with intact compound leaves (Halamski 2013, fig. 2) may well have been situated further offshore than Idzików.…”

“…The better-preserved specimen from the Cenomanian of Kuchelbad is available for a lectotype. The specimen from Česká Lípa is interpreted herein as a fragmentarily preserved pedate leaf of Debeya (Dewalquea) (see Halamski 2013, Halamski & Kvaček 2013 and not an element of pinnately bifoliolate leaf of Hymenaea (Leguminosae).…”

“…On the contrary, it is evident that most isolated angiosperm leaves can be assigned to one of the two classes, either the Dicotyledoneae or the Monocotyledoneae. Moreover, following Halamski (2013, see also Jud & Hickey 2013, Passalia et al 2015 we consider compound leaves as diagnostic for eudicots. Consequently, Debeya and Dalbergites are referred to the Eudicotyledoneae, whereas all the remaining fossil-taxa are considered as Dicotyledoneae incertae sedis.…”

Late Cretaceous (Campanian) leaf and palynoflora from southern Skåne, Sweden

“…Some of his plant fossils are, perhaps, present amongst a collection of material originating from Lund but now (2015) registered at the NRM, but the documents detailing the collector(s) and transfer are lacking. This concerns, in particular, type and figured specimens that could not be traced for the purpose of the (2015), modified after data in Chatziemmanouil (1982), Surlyk in Voigt et al (2008) and Halamski (2013)), and the presumed location of the studied flora and of three other coeval palaeofloras (circle, Poland-Ukraine; square, Haldem in Westphalia; triangle, Grünbach in Austria). (b) Bedrock geological map of Skåne (Scania) and adjacent regions after Koistinen et al (2001), Vajda & Gravesen (2008) and references therein.…”