Dieter Uhl

Dieter Uhl
Senckenberg Research Institute · Department of Palaeontology and Historical Geology

apl. Prof. Dr.

About

268
Publications
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Introduction
My main interests are: - The development of plant diversity through time with a focus on the Late Palaeozoic and Early Mesozoic, as well as the Palaeogene. - How can plants be used to reconstruct palaeoenvironments? Currently I am mainly focusing on fossil charcoal as an indicator of palaeo-wildfires. Geographically my work is currently focussed on Central Europe and parts of Gondwana (i.e. Brazil, Jordan, India, S-Africa).
Additional affiliations
August 2014 - April 2016
Universidade do Vale do Taquari - UNIVATES
Position
  • Guest Scienctist
Description
  • Guest Scientist funded by CAPES programme "Ciencias sem Fronteira".
January 2005 - June 2006
Utrecht University
October 2002 - September 2004
Eberhard-Karls-Universität Tübingen

Publications

Publications (268)
Article
We report studies of petrography, palynofacies, charcoal and adpressed plant fossils for the coal-bearing Jagannath section in the Talcher Coalfield, Mahanadi Basin, India, to improve understanding of the age, palaeoecology and depositional setting of this palaeo-mire. Palynology is indicative of the Scheuringipollenites barakarensis assemblage, su...
Article
Cenozoic plant megafossil records from the eastern part of Nepal are meagre. Here, we report two new fossil leaves, namely Pterygota palaeoalata Srivastava and Mehrotra of the family Malvaceae and Thelypteridaceophyllum tertiarum Joshi and Mehrotra of the family Thelypteridaceae from the Middle Siwalik (late Miocene–early Pliocene) sediments of eas...
Article
Full-text available
Macroscopic fossil charcoal fragments have been recovered from the borehole AK-19 (at a depth of 120.00 m) drilled at the Astona-Kothurna coal block, Wardha valley coalfield. In general, the occurrence of charcoal in sediments is accepted as a direct indicator for palaeo-wildfires. The charcoal fragments exhibits well preserved homogenized cell wal...
Article
Download a free copy using this link: https://www.tandfonline.com/eprint/SC2RXGHW88QRFGJVE9AB/full?target=10.1080/01916122.2021.2023057 Abstract A palynological investigation was carried out on 24 samples from the Oligocene Dabaa Formation, which cuts across the Amana-1X well, located in the Abu El Gharadig Basin, north Western Desert, Egypt. Paly...
Article
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The record of Cretaceous palaeo-wildfires is rather scarce for peninsular India. We aim to report a detailed macro-charcoal analysis as evidence for palaeo wildfires of Early Cretaceous deposits from India. The macro-charcoal was studied using SEM and classified into three morphotypes based on anatomical characteristics. All morphotypes are probabl...
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Charcoal remains and bulk lignites collected from the late Pliocene Jinsuo Basin in Yunnan, southwestern China, have been studied to reveal changes in the wildfire regime related to changes of the palaeoenvironment, palaeoclimate, and paleobotany. Different types of wildfire occurred in this paleomire with a predominance of low-temperature surface...
Article
A new florula, dominated by angiosperm leaves, is reported from the Upper Cretaceous (Turonian?) Malihah Formation of Saudi Arabia. The leaves are fragmentary preserved as impressions with a rust coloured, mineral coating, thus it is only possible to describe the best-preserved leaf forms as morphotaxa for the time being. Eight angiosperm and two g...
Article
Macro-charcoal from late Eocene–late Oligocene deposits of the Neuwied Basin in W-Germany provides evidence for the occurrence of palaeo-wildfires in three different time-slices in this region. (Par-)Autochthonous macro-charcoal from lignites of the late Eocene Bubenheim Formation of the locality Koblenz-Metternich can best be compared to the genus...
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In der vorliegenden Arbeit beschreiben wir das Sekundär xylem eines fossilen Holzes aus den pliozänen Schichten, die in einem Krater see in Ruppach-Gold hausen im Wester wald (Rhein land-Pfalz, SW-Deutsch land) ab ge lagert wur-den. Das Exemplar ist lignitisiert und wurde auf grund seiner anatomischen Merk male als cf. Cupressin oxylon klas-sifizie...
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The current state of knowledge on the Niedermoschel black shale of the Rotliegend (Lower Permian) is briefly summarized and an up-to-date list of the hitherto described taxa is given. A selection of representative specimens is photographed and reproduced. For the first time, the trace fossil Cochlichnus is described for the Rotliegend of the Saar-N...
Article
The Cretaceous “high-fire” period was a global event that reached almost all continental masses during that period in Earth’s history. The extensive wildfires directly affected plant communities. Significant palaeobotanical records in the Antarctic Peninsula have been studied from the James Ross Sub-Basin, especially from the Santa Marta Formation....
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Journal of Palaeosciences (previously: The Palaeobotanist) 70(2021): 159–171 Fire is a major driver for the evolution of biodiversity throughout the Phanerozoic and occurs in continental palaeoenvironments since the advent of the first land plants in the Silurian. The detection of palaeo–wildfire events can be based on different proxies, and charc...
Article
Determining the diversity of past floras helps with interpreting both the history and predicting the future of vegetation change. For global-scale and regional-scale diversity studies especially, secondary data are often used but local-scale studies tend to be based on survey data that require rigorous sampling. The correct sampling strategies depe...
Article
Palaeobotany and palynology are the main direct sources of evidence for studying vegetation diversity dynamics through geological time. However, plant fossil diversity is affected by various factors other than vegetation diversity, which need to be taken into account in such studies. The use of fossil-taxa will potentially inflate perceived plant d...
Article
The Eocene–Oligocene transition period was marked by one of the most abrupt and severe global environmental changes in the Cenozoic record, and this had a marked influence on the evolution of a number of animal and plant groups and entire ecosystems. This study documents continental palynomorphs recovered from the sedimentary rocks of the Dabaa For...
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Wildfires occurred more or less regularly in many Pennsylvanian ecosystems, not only in seasonally dry regions but also in the ever wet tropics. One of the reasons for this was probably the relatively high atmospheric oxygen conditions prevailing during this period. The present study reports evidence for the occurrence of wildfires during depositio...
Article
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The Paleocene Fossil-Lagerstätte Menat in France is well known for its wealth of outstandingly well preserved fossil insects and plants. Despite being known for more than a century, the palaeoflora, which is regarded as typical for the late Thanetian by some authors, has largely been neglected since the 1940s. New excavations and surveys yielded ex...
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At the end of December 2020, Volker Mosbrugger retired, after 15 years, from his position as Director General of the Senckenberg Gesellschaft für Naturkunde, 2 years after he turned 65, the official age for retirement in Germany. During the last 40 years, Volker has built up an international reputation not only as a leading palaeobotanist, but also...
Article
A new fossil taxon, Iratinia australis gen. nov. et. sp. nov., is proposed based on a monoxylic anatomically preserved axis from the Irati Formation, Kungurian of the Paraná Basin, Brazil. This specimen was initially interpreted as a lycopsid, but its set of morpho-anatomical characteristics indicate that it has systematic affinity with Cycadales....
Article
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This study provides a combined analysis on the palynology, fossil charcoal and biomarkers of the subsurface coal deposits from a borehole RMB #2 drilled at the Dhulia Coal Block, Rajmahal Basin, India, in attempts to establish the chronology of sedimentation and to propose palaeobotanical as well as geochemical evidence for the occurrence of wildfi...
Chapter
Extant lycopsids are small, mostly herbaceous plants, but during the Paleozoic, taxa of this lineage reached arborescent growth habits. Here we provide a glimpse into the lycopsid fossils from the Permian of Brazil. In this country, these plants have been reported from the Permian strata of the Parnaíba and Paraná basins. The Permian lycopsid fossi...
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We present three years (2011 to 2013) of in situ airborne pollen monitoring data on the northern slope of the Qomolangma (Everest) region to better understand the connections among airborne pollen, vegetation and climate. The pollen assemblage dominated by local herb and shrub pollen can reflect mountain shrub steppe vegetation. Herb pollen behave...
Article
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The late Paleocene fossil lagerstätte Menat in France is well known for its wealth of excellently preserved fossil plants and insects. Although the flora from this locality is regarded as characteristic for the late Thanetian in Western and Central Europe, there is a noteworthy lack of modern paleobotanical studies on this locality. The few existin...
Article
Full-text available
In: Deutsche Stratigraphische Kommission (Hrsg.; Koordination und Redaktion: J. Paul & H. Heggemann für die Subkommission Perm-Trias): Stratigraphie von Deutschland XII. Zechstein
Article
The Permian period had the most oxygen-rich atmosphere in Earth's history. With the presence of large amounts of fuel from vegetation, there was therefore a high probability of igniting fires during this time. This study presents the geochemical characterization of charcoal-bearing Asselian sediments, represented by terrestrial to lagoonal facies,...
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A variety of traces of pre-charring decay are described from coniferous charcoals from the Norken locality, stratigraphically positioned within the Breitscheid Formation (Late Oligocene, Chattian) of the West-erwald area (Rhineland-Palatinate; W Germany). The traces include three-dimensionally preserved as well as collapsed fungal hyphae, collapsed...
Article
At the beginning of the 20 th century, the fossil collector and trader Charles Hazelius Sternberg and his sons discovered two Edmontosaurus mummies in fluvial sandstones of the Late Cretaceous, Maastrichtian, Lance Formation, Wyo-ming, U.S.A. The first mummy was sold to the American Museum of Natural History in New York (U.S.A.) and the second to t...
Article
Lycopsids evolved arborescent and sub-arborescent growth habits and played a major paleoecological role during the late Palaeozoic. Here we provide an overview of lycopsid macrofossils documented so far in the late Palaeozoic deposits of the South American Paraná Basin. Most of these lycopsid remains were reported from the Brazilian part of the bas...
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CHEMICAL EVALUATION OF Araucaria columnaris CARBONIZED WOODS UNDER DIVERSE OXYGEN CONCENTRATIONS AS COMPARATIVE ANALYSIS OF FOSSIL charcoal. In the face of environmental changes concerns, the study of climate change becomes essential to understand the life trajectory of planet earth. For this purpose, this work seeks to understand climate change an...
Article
The taxon Paradoxopteris stromeri Hirmer, representing the rachis/petiole/stem of the fern Weichselia reticulata (Stokes et Webb) Fontaine, has a widespread occurrence in the Early–early Late Cretaceous of Northern Africa and the Near East, Europe, as well as South America. Here a new record of this taxon is presented from Cenomanian deposits at Ge...
Article
The taxon Paradoxopteris stromeri Hirmer, representing the rachis/petiole/stem of the fern Weichselia reticulata (Stokes et Webb) Fontaine, has a widespread occurrence in the Early–early Late Cretaceous of Northern Africa and the Near East, Europe, as well as South America. Here a new record of this taxon is presented from Cenomanian deposits at Ge...
Article
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The coal horizons of the Middle Jurassic Hojedk Formation of East-Central Iran are fossiliferous, bearing numerous well-preserved fossil plants, comparable to the Shemshak Group/Formation in the Alborz Mountains in Northern Iran. Here we present two recently discovered fossil taxa from the Middle Jurassic Hojedk Formation of the Tabas Block (Centra...
Article
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After publication of this article (Badihagh & Uhl, 2019), it is noticed the article contains some error:
Poster
In this work, we present a global distribution and diversification of Elatocladus morphogenus was investigated during the Mesozoic. In addition, the first occurrence of Elatocladus laxus from the Middle Jurassic of Tabas Block, Central Iran.
Conference Paper
Full-text available
In this work, we present a global distribution and diversification of Elatocladus morphogenus was investigated during the Mesozoic. In addition, the first occurrence of Elatocladus laxus from the Middle Jurassic of Tabas Block, Central Iran.
Article
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The Upper Cretaceous (early Cenomanian) Bahariya Formation of Egypt has an outstanding reputation for its wealth of vertebrate remains, including a variety of iconic dinosaurs, like the carnivorous Spinosaurus and Carcharodontosaurus, as well as the herbivorous Aegyptosaurus and Paralititan. Besides these dinosaur fossils, the Bahariya Formation yi...
Article
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A new fossil meso-flora consisting of dispersed cuticles has been discovered within the Upper Member of the Middle Triassic (late Anisian) Mukheiris Formation at the eastern rim of the Dead Sea in Jordan. The assemblage consists of a number of different morpho-types of cuticles which can all be assigned to gymnosperms. Cuticles which can be identif...
Article
The fossil record contains abundant evidence for the activity of microorganisms in the form of characteristic decay structures within fossil plant remains. Despite an abundance of charcoal in many sedimentary environments, there is little published evidence of such decay structures within charcoal from pre-Quaternary clastic deposits. The present c...
Article
Fossil charcoal is usually considered as the most reliable tool for the recognition of palaeo-wildfires. In the present communication, we provide the first detailed description of macro-charcoal from the Itararé Group, Paraná Basin, Brazil. These fragments were transported prior to final deposition and only limited anatomical details are recognizab...
Article
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Distribution and abundance of charcoal in coal seams (in form of pyrogenic macerals of the inertinites group) have been considered as a reliable tool to interpret the local and regional palaeo-wildfire regimes in peat-forming depositional environments. Although the occurrence of inertinites is globally well documented for the Late Palaeozoic, the d...
Data
Published records of charcoal in Lower Permian. Data based on [1,2,3,4], and additional sources not mentioned in these previous compilations. (DOCX)
Data
Maceral content of the six carbonaceous levels of the Barro Branco coal seam studied site. (DOCX)
Data
Published records of inertinites in Lower Permian coals. Data based on [1,2,3,4,5], and additional sources not mentioned in these previous compilations. (DOCX)
Article
Reports on Cretaceous charcoals are relatively common on a global scale and have been increasing in recent years. Fossil charcoal from the Early Cretaceous mostly belongs to conifers (and other gymnosperms) and ferns whereas angiosperms become more common only during the Late Cretaceous. However, so far, reports of Cretaceous acroscopic charcoal a...
Article
Agnihotri D, Pillai SSK, Aggarwal N, Tewari R, Jasper A & Uhl D 2018. Palynomorphs from the Barakar Formation of Dhanpuri Open Cast Mine, Sohagpur Coalfield, Madhya Pradesh. The Palaeobotanist 67(2): 171-184. Well preserved palynomorphs from the Barakar Formation of Dhanpuri Open Cast Mine, Sohagpur Coalfield, Shahdol District, Madhya Pradesh are r...
Article
Full-text available
Details of the epidermal anatomy of Glyptostrobus europaeus (BRONGN.) UNGER from the Late Oligocene locality Norken in the Westerwald (Rhineland-Palatinate, W-Germany) are documented and described by means of scanning electron microscopy of in situ cuticles. The taxon had a wide distribution over the entire Northern Hemisphere during the Oligocene...
Article
Well preserved palynomorphs from the Barakar Formation of Dhanpuri Open Cast Mine, Sohagpur Coalfield, Shahdol District, Madhya Pradesh are reported for the first time. The palynomorphs include megaspores and spores/pollen grains. Dispersed megaspores are represented by 6 genera and 13 species comprising Banksisporites indicus, B. utkalensis, Banks...
Article
Full-text available
Fire is an important constituent of many modern and fossil ecosystems. During the last decades a large number of studies have dealt with fires in pre-Cenozoic ecosystems. Evidence for the occurrence of Palaeogene and Neogene wildfires (e.g. in the form of pyrogenic inertinites in lignite deposits) is geographically and stratigraphically widespread....
Article
Full-text available
Agnihotri D, Pillai SSK, Aggarwal N, Tewari R, Jasper A & Uhl D 2018. Palynomorphs from the Barakar Formation of Dhanpuri Open Cast Mine, Sohagpur Coalfield, Madhya Pradesh. The Palaeobotanist 67(2): 171-184. Well preserved palynomorphs from the Barakar Formation of Dhanpuri Open Cast Mine, Sohagpur Coalfield, Shahdol District, Madhya Pradesh are r...
Article
Full-text available
We performed a palynological study on Jurassic successions of the Hojedk Formation, Central Iran. The sampled material was recovered from well no. 233, South Kuchak-Ali area belonging to the Tabas Block. The lithology comprises 475.80m of green-grey shales and sandstones. Palynological assemblages were recovered including spores, pollen grains, din...
Conference Paper
The Paleocene is an important epoch in the development of the flora and fauna in the Cenozoic,but relatively few terrestrial fossil sites of this age are known in Europe. For many groups, like plants and mammals, the catastrophic events at the Cretaceous–Paleogene (K/Pg, formerly K/T) boundary had ushered in significant changes, and our understandi...
Article
Full-text available
p>Leaves of Terminalia (Combretaceae) and Daphnogene (Lauraceae) are described from the lower member of Lower Siwalik of Chatara- Barahakshetra area, eastern Nepal. The habit, habitat and present day distribution of the comparable extant taxa indicates the existence of tropical to sub-tropical evergreen to semi evergreen forest with humid climate i...
Article
The Konservat-Lagerstatte Menat (Puy-de-Dome, France) is an outstanding archive of a Paleocene ecosystem, which was deposited in a former maar lake. Excavations during the last century have yielded an extensive flora and fauna record, therefore an overview of the current state of paleontological investigations is given in this paper. Additionally,...
Article
Full-text available
The new species Groenlandia pescheri D. Uhl & Poschmann sp. nov., belonging to the family Potamogetonaceae, is described from the Late Oligocene Fossil-Lagerstätte Enspel (Westerwald, Germany). The species is characterized by sub-oppositely arranged leaves without observable stipule-like appendages at the leaf bases and a very thin exocarp (both ch...
Article
Full-text available
Charcoal is widely accepted as evidence of the occurrence of palaeo-wild re. Although fossil charcoal remains have been used in many studies, investigation into the anatomical changes occurring during charring are few. e present study analyses changes in selected anatomical characters during artii cial charring of modern wood of three species of th...