Original paper
Paleozoic in situ spores and pollen. Lycopsida
Bek, Jiří
Palaeontographica Abteilung B Volume 296 Issue 1-6 (2017), p. 1 - 111
415 references
published: Dec 11, 2017
Abstract
The paper reports all records of in situ spores of Paleozoic lycopsids including 60 parent plant genera and one sub-genus with 215 species. These reproductive organs yielded in situ spores belonging to 46 spore genera (21 megaspore and 25 microspore) with 84 species. All descriptions of in situ spores are modified according to modern terminology recommended for description of Paleozoic spores. Some plant taxa are referred to different genera based on in situ spores and sixteen new combinations and two new species are proposed. The main morphological types of Paleozoic lycopsid spores are defined together with several palynological lineages. Paleozoic lycopsid spores usually do not belong to the morphologically simplest spore type and exhibit a wide range of variation including cingulate, zonate, cingulizonate, cavate, pseudosaccate, gulate with a number of different sculpture elements and most of them produced in situ spores belonging to only one dispersed spore taxon.
Keywords
In situ spores • reproductive organs • Lycopsida • Paleozoic