Scanning electron microscope and light microscope investigations of pollen from an atypical mid-Eocene coal facies in Stolzenbach mine (PreußenElektra) near Borken (Kassel, Lower Hesse, Germany)

Autor: Christa-Ch. Hofmann, Hans-Joachim Gregor
Rok vydání: 2018
Předmět:
Zdroj: Review of Palaeobotany and Palynology. 252:41-63
ISSN: 0034-6667
DOI: 10.1016/j.revpalbo.2018.02.004
Popis: Light microscope (LM) and scanning electron microscope (SEM) investigations of palynomorphs from a mid-Eocene coal lens at the Stolzenbach brown-coal mine (“Borken brown coal field”) yielded a remarkable microflora assemblage, with 76 pollen and spore taxa, dominated by monolete fern spores. Numerous pollen and pollen clumps of Myrtaceae and Salicaceae might represent in-situ growth of these families, which were associated with pollen of Aralia -type, Eotrigonobalanus spp., Flueggea -type, Nyssa -type, three Pentapollenites taxa, and Spinaepollis spinosus , plus many others. Ericaceae such as Erica -type, Kalmia - type , and Rhododendron -type pollen are described from here for the first time; the last represents the earliest known occurrence of the genus. Additionally, five tropical south Asian Sapotaceae taxa (Mimusopeae- and Isonandreae tribes), and one tropical South American bombacoid Eriotheca -type occur. Several previously undescribed pollen taxa for the Eocene have been found; some are amongst the oldest examples of these pollen taxa: the Nuphar -type pollen represents the earliest occurrence in Europe and, whilst the Acalypha -type and Trochodendron -type are the oldest pollen occurrences in general, the Viburnum -type, affiliable to Viburnum clemesiae probably represents a tropical south Asian lineage.
Databáze: OpenAIRE
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