Rafael Spiekermann

ORCID: 0000-0001-8341-7140
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About
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Research Areas
  • Plant Diversity and Evolution
  • Geological formations and processes
  • Geology and Paleoclimatology Research
  • Fern and Epiphyte Biology
  • Plant and Fungal Species Descriptions
  • Paleontology and Stratigraphy of Fossils
  • Fire effects on ecosystems
  • Coal and Its By-products
  • Plant and animal studies
  • Hydrocarbon exploration and reservoir analysis
  • Botany and Geology in Latin America and Caribbean
  • Aeolian processes and effects
  • Geochemistry and Geologic Mapping
  • Paleontology and Evolutionary Biology
  • Evolution and Paleontology Studies
  • Geological and Geochemical Analysis
  • Ecology and Vegetation Dynamics Studies

Senckenberg Research Institute and Natural History Museum Frankfurt/M
2020-2023

Univates
2015-2020

Macro‐charcoal, as direct evidence of palaeo‐wildfires, is a common constituent throughout an Early Permian (Cisuralian) inertinite‐rich coal seam from the Dhanpuri Coal Mine (Barakar Formation, Sohagpur Coalfield, Madhya Pradesh, India). The continuous presence macro‐charcoal within this particular demonstrates that fires occurred repeatedly in source vegetation seam. Based on these remains, anatomical assessment diversity and taxonomic composition vegetation, which experienced wildfires...

10.1002/gj.2860 article EN Geological Journal 2016-09-12

A fossil angiosperm wood from the Touro Passo Formation (Pleistocene) in northwestern part of Rio Grande do Sul State, Brazil, is described as new fossil-taxon Itaquixylon heterogenum Benicio, Pires, Da Rosa, Spiekermann, Uhl et Jasper gen. nov. sp. The silicified, and 9.9 cm diameter 16.6 length, with small pith. main anatomical features are diffuse porosity, vessels solitary radial multiples, simple perforation plates, alternate vestured intervessel pits, vessel-ray vessel-parenchyma pits...

10.14446/fi.2016.251 article EN Fossil Imprint 2016-12-30

Distribution and abundance of charcoal in coal seams (in form pyrogenic macerals the inertinites group) have been considered as a reliable tool to interpret local regional palaeo-wildfire regimes peat-forming depositional environments. Although occurrence is globally well documented for Late Palaeozoic, description palaeobotanical evidence concerning source plants such so far largely missing. In present study, we provide first detailed analysis macro-charcoal preserved Barro Branco seam, Rio...

10.1371/journal.pone.0213854 article EN cc-by PLoS ONE 2019-03-14

Sedimentary charcoal is widely accepted as a direct indicator for the occurrence of paleo-wildfires and, in Upper Paleozoic sediments Euramerica and Cathaysia, reports on such remains are relatively common (regionally stratigraphically) more or less homogeneously distributed. On contrary, just few reliable records have been published Late Gondwana only recently it has demonstrated that macroscopic charcoals (and thus fires) were also southern continent during this period. The most important...

10.11606/issn.2316-9095.v16i4p87-97 article EN cc-by-nc-sa Geologia USP Série Científica 2016-12-16

Abstract Fossil evidence for wildfires, in form of fossil charcoal, is known from a large number Cretaceous localities worldwide and it has repeatedly been argued that wildfires were connected to the evolution radiation angiosperms during this period. The present study provides new (in macro-charcoal) occurrence deposition Lower (pre-Aptian) Malha Formation at Wadi Budra Sinai Peninsula, Egypt. Despite growing Cretaceous, available database pre-Aptian still rather scarce regions when seen on...

10.25131/sajg.125.0011 article EN South African Journal of Geology 2022-06-01
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