Petr Kraft , †Zlatko Kvaček
2021 | ročník 77 | číslo 1 | stránky 53–54
DOI:
10.37520/fi.2021.006
Abstract
Baragwanathia brevifolioides is established as a nomen novum for B. brevifolia P.Kraft et Kvaček, 2017, recently described from the Silurian of the Prague Basin, Czech Republic and revealed as a later homonym of B. brevifolia Hundt, 1952.
Key words
nomenclature, Lycophyta, Baragwanathia, Silurian, Prague Basin, Thuringia
Pavel Bokr , Radek Mikuláš , Petr Budil , Petr Kraft
2021 | ročník 77 | číslo 1 | stránky 17–35
DOI:
10.37520/fi.2021.003
Abstract
Upper Ordovician shallow marine fine-grained sandstones and siltstones exposed in the Loděnice – vinice locality yielded a distinct and well-preserved tiering pattern of trace fossils. The two uppermost tiers are composed mainly of Bifungites and Nereites. Deeper in the sediment, tiers dominated by Thalassinoides, Zoophycos and Teichichnus occur. Most of the succession is completely bioturbated; however, several storm layers enabled study of a well-preserved frozen tiering pattern. Large portions of the bedding planes (ichnologic snapshots) showed a considerable patchiness of intensive surface bioturbation and a preferred orientation of Bifungites. The identified tiering pattern is one of the earliest examples of a well-documented complex tiering of burrows documented in detail.
Key words
ichnofossils, tiering, Ordovician, Barrandian area, peri-Gondwana
Valéria Vaškaninová , Petr Kraft
2016 | ročník 72 | číslo 3-4 | stránky 155–160