Vasilis Teodoridis

Charles University in Prague | CUNI · Department of Biology and Environmental Studies

Ecosystems are defined by the community of living organisms and how they interact together and with their environment. Insects and plants are key taxa in terrestrial ecosystems and their network determines the trophic structure of the environment. However, what drives the interactions between plants and insects in modern and fossil ecosystems is no...

Recently two tools, Drudge 1 and 2, were introduced to more easily assess modern vegetation proxies for the fossil record. They are based on three similarities: the Integrated Plant Record (IPR) Similarity assessing the similarity between fossil assemblages and modern vegetation based on the proportion of major zonal angiosperm components; the Taxo...

There were found three new early Miocene fossiliferous horizons in the Libouš Mine near Chomutov in the Most Basin. The Libkovice Member was originally considered as fossil barren, apart from rare findings from bore cores. The new fossiliferous horizons within lacustrine clay sediments can be exactly dated (17.0-17.3 Ma) thanks to positions close t...

The late Badenian and Sarmatian (Serravallian) evolution of depositional environments in the Danube Basin (Želiezovce Depression) has never been fully explored. Here, we clarify the paleoenvironmental changes which took place in this area during the late Badenian and Sarmatian on the basis of sedimentological, petrographic, biostratigraphic and pal...

A new palaeobotanical site was recovered at artificial excavations within the city district of Ústí nad Labem called Mojžíř in northern Bohemia (Czech Republic) that yielded slabs of Oligocene tephritic pyroclastic rocks with plant impressions. The fossiliferous layer belongs to the Děčín Formation of the České středohoří Mts. dated to the Oligocen...

A recently recovered site of plant macrofossils, Ludvíkovice, in the České středohoří Mts. is situated on Sokolí vrch hill, belonging to the Děčín Formation (radiometrically dated to 30.8–24.7 Ma), according to regional stratigraphy. The flora has yielded a fern, Rumohra recentior, and several angiosperms, but no conifers. The prevailing foliage is...

The Pliocene flora of Frankfurt am Main described by Karl Mädler during the first half of the twentieth century is a key flora for the European Pliocene. In the present study, we revised the leaf fossil taxa described by Mädler and investigated plant material collected after Mädler’s publication. The revised and augmented floral list comprises seve...

The Kuchyňa tuff is found on the Eastern margin of the Vienna Basin and was formed by felsic volcanism. The Ar/Ar single grain sanidine method was applied and resulted in an age of 15.23 ± 0.04 Ma, which can be interpreted as the age of the eruption. The obtained numerical age is in accordance with the subtropical climate inferred by the presence o...

Since 1855, 25 different fossil wood types belonging to conifers (Cupressaceae s.l. with two different types of Taxodioxylon gypsaceum: root- and stem-wood), and angiosperms (families Magnoliaceae, Lauraceae, Platanaceae, Altingiaceae, Cercidiphyllaceae, Ulmaceae, ?Moraceae, Juglandaceae, Betulaceae, Malvaceae s.l., Sapotaceae, Oleaceae, one palm s...

The Oligocene palaeontological locality on Matrý Hill near Sebuzín in the České středohoří Mts., North Bohemia, belongs to the Děčín Formation and is dated to 30.8-24.7 Ma according to the regional stratigraphy. It has yielded, in addition to insects from the Heteroptera group, a fossil bee Apis petrefacta and palaeobatrachid frogs, also numerous p...

The Middle Miocene plant record from the wider Central Paratethys region (Central Paratethys, the North Alpine Foredeep, Carpathian Foredeep, the Swabian Alb and southern parts of the Bohemian Massif) was analysed by the Integrated Plant Record (IPR) vegetation analysis to assess major vegetation types. The plant assemblages at 27 sites accumulated...

In Pliocene sedimentary successions of northern and central Italy, fossil swamp forests are relatively common. Most of them pertain to the Piacenzian stage and show a dominance of the conifer Glyptostrobus europaeus as an arboreal element. A new fossil forest that recently cropped out at Fossano in the Piedmont region represents the first Zanclean...

The Ahníkov/Merkur Mine paleontological locality (mammal biozone MN3a, Lower Miocene) located in the westernmost part of the freshwater, graben-related Most Basin yielded more than 150 species of fossil fauna. The finds include mammals, birds, reptiles, amphibians, trace fossils (gnawing and biting traces on reptilian and mammalian bones) and numer...

Type specimens and other material of Comptonia difformis (Sternberg) Berry (Myricaceae) from the Most Basin, North Bohemia, have been re-investigated in order to obtain more complete information on the leaf morphology, epidermal structure and co-occurring fruits. The history, paleoecology and comparisons with similar fossils from Eurasia and extant...

The fossil leaf material of Polenta originally described by Principi (1922, 1926) has been studied morphologically to assess the taxonomic composition of the plant assemblage and to carry out vegetation analysis. The flora of Polenta includes after the present revision 46 vascular plant taxa with 5 conifers and 41 angiosperms. Several fossil specie...

The Cenozoic basins in Germany (Weißelster) and the Czech Republic (Cheb, Sokolov and Most) have an extensive fossil record of riparian vegetation traceable from the middle Eocene to the early Miocene. Within this paper we focus on its evolution and gradual changes between the late Bartonian and the Eocene-Oligocene turnover, a time interval of gra...

Palaeoclimatic estimates derived from CLAMP are usually presented as an exact value/number. However, in order to be correct, palaeoclimatic estimates derived from the CLAMP calibration datasets including physiognomic and meteorological characteristics of living vegetation must be expressed as intervals. This study introduces a method for calculatin...

Fossil leaves of Messinian age (ca. 5.7 Ma) from two sites of the Vena del Gesso Fm. (Monte Tondo and Tossignano, Ravenna and Bologna provinces, Italy) were studied morphologically to assess the taxonomic composition of the assemblages and carry out a palaeoenvironmental analysis. The flora of Tossignano so far comprises 41 vascular plant taxa with...

The early Oligocene flora of Hrazený hill in Knížecí village at Šluknov, the topic of Erwin Knobloch’s diploma thesis, is revised and new elements not previously encountered are included, partly thanks to the use of cuticular analysis: among conifers Pinus cf. rigios (UNGER) ETTINGSHAUSEN, Taxus engelhardtii KVAČEK and Torreya bilinica SAPORTA et M...

We summarize palaeoclimatic oscillations recognizable in Cainozoic floras and vegetation of the Bohemian Massif and adjacent regions in Germany during the time span late Eocene to early Pleistocene. Statistical evaluation using Leaf Margin Analysis, Climate Leaf Analysis Multivariate Program and Coexistence Approach together with the Integrated Pla...

The science field trips in educational practice publication intends to examine various aspects of the topic of field trips at schools and to interconnect all these approaches. The book is a result of collaboration of respected experts in various fields of science as well as educational theorists attempting to find common language in order to produc...

Abstract: A new late Miocene (Tortonian) leaf flora has recently been recovered in the southernmost part of Europe on the island of Gavdos, Greece. So far, three conifers (Tetraclinis salicornioides, Taxodium dubium and Pinus sp.) and 27 fossil species/morphotypes of angiosperms have been recognized. Among them, some represent subtropical, partly e...

New records of plant macrofossils of palms and other groups are evaluated within the framework of the Messinian environment at the newly studied site of Capo di Fiume, Palena, central Italy. Similar palm foliage has been also recovered from the Messinian deposits of Pollenzo near Alba, northern Italy. The palm leaves were assigned to Phoenicites sp...

European late Neogene to early Pleistocene seed cones and seeds similar to those of the modern species of Pinus roxburghil SARG. in the Himalayas and Pinus canariensis C. Sm. on the Canary Islands are treated in detail. Material obtained from various collections in Italy, Greece, Germany and France was evaluated with the aim to find diagnostic trai...

A palaeogeographic development of the Most Basin and adjacent Saxony area during the Miocene, based on palaeontology, geochemistry of clays and heavy minerals in sands Karel Mach 1, Vasilis Teodoridis 2, Tomáš Matys Grygar 3, Zlatko Kvaček 4, Peter Suhr 5, Gerda Standke 1 North Bohemian Mines j.s.c., Bílina Mines, 5. května 213, 418 29, Bílina, C...

A new plant assemblage of Cerová-Lieskové documented by fossil macro- and microfloristic records from the directly dated deposits of Karpatian age in W Slovakia is reported. It includes besides conifers represented by Pinus and Tetraclinis salicornioides foliage and pollen of the Cupressaceae, Pinaceae, Pinus and Cathaya also by a few angiosperms t...

This report concerns sediments in the Most Basin (NW Czech Republic) and coeval North-west European Tertiary Basin (Germany) connected by a joint trunk river in the time period from the end of the Oligocene to the end of the early Miocene. The re-evaluation of older geochemical and palaeobotanical datasets and newly performed geochemical analyses s...

Geology and palaeontology of the Roudniky area, situated between the Most Basin and the Česke středohoři Mountains in North Bohemia, the Czech Republic, is treated in detail. The volcano-sedimentary structure underlying the basin with the included fossiliferous layers is newly interpreted as a maar-diatreme. The radiometric age of the basalts was d...

In organic rich shale interlayers alternating with gypsum selenite beds cropping out in the Mt. Tondo quarry (Gessoso-solfifera Formation, Messinian) many fossils were found, especially of plants. Such paleoflora, preliminarily represented by 44 taxa, has many correspondences with contemporary fossil floras of Northern Italy and Central-southern Eu...

Previously known Eocene floras of mid-latitudinal Europe are analysed using statistical methodologies in order to obtain more reliable palaeoclimatological signals to detect possible climatic fluctuations during this time interval. Only macrofossil assemblages have been taken into account and subjected to the statistical evaluation called the Integ...

A detailed survey is presented of the early Miocene flora of the abandoned Kristina Mine at Hrádek nad Nisou in the Hrádek part of the Zittau Basin, North Bohemia. It is based on leaf morphological and anatomical study of macrofossils recovered since 1963 with additional information on carpological records. The flora belongs to the Younger Mastixio...

Integrated Plant Record (IPR) vegetation analysis is a semi-quantitative tool developed as a proxy to assess zonal vegetation classification. It is based on fossil plant taxa categorized into zonal taxonomic-physiognomic components reflecting key autecological characteristics. The proportions of these components in the fossil assemblages define the...

The Integrated Plant Record vegetation analysis (IPR vegetation analysis) is a semi-quantitative method that has been developed to reconstruct Cenozoic zonal vegetation based on the fossil leaf, fruit, and pollen record, i.e., the integrated plant record. To date, thousands of taxa have been scored and more than 300 fossil and modern plant sites ha...

The mastixioid flora of Arjuzanx is described within respect of foliage and flattened co-occurring carpological material from the collections of the late JEAN HUARD, housed at the University of Montpellier (France). The leaf assemblage contains 1 fern, 7 gymnosperms and 76 angiosperms. The spectrum includes also new taxa Distylium huardii sp. nov.,...

CLAMP (Climate Leaf Analysis Multivariate Program) has been used for the past 17 years to estimate palaeoclimatic conditions. The reliability and applicability of this method, based on leaf physiognomic characters of fossil woody dicots, has been widely discussed over the same period. The present study focuses on some technical aspects of CLAMP, ma...

Nine Early Miocene macrofloras from the Most Basin have been evaluated using the IPR vegetation analysis. This semi-quantitative method confirms a zonal vegetation change from the Mixed Mesophytic Forest of the Holešice Member floras to the Broad-leaved Evergreen Forest type represented by floras of the Libkovice Member. This vegetation shift corre...

Leaf remains of Ilex L. sect. Ilex known from the Pliocene of Auenheim (Alsace, France) and Frankfurt a. M. - Niederrad (Hesse, Germany) as Ilex aff. cornuta Lindley fossilis Geissert and Ilex aquifolium L. fossilis Engelhardt, respectively, are re-interpreted as representing a new species Ilex geissertii Kvaček, Teodoridis et Wang Qing, sp. nov. S...

A systematic overview of the conifer macrofossils (leaves, cones, seeds and wood) from the Lower Miocene of the Most Basin (Czech Republic) is presented and nine natural units (botanical species) are defined, belonging to three species of Pinus L. and one species of Pseudolarix GORDON, Quasisequoia SRINIVASAN & FRIIS emend. KUNZMANN, Taxodium RICHA...

Tertiary floras occurring in the Bohemian Massif based on plant macrofossils (leaves and carpological material) are reviewed. The sites are situated in various stratigraphical levels of the Cheb, Sokolov, Most, Zittau, České Budějovice and Třeboň basins, volcanic complexes of the Doupovské hory Mts and České středohoří Mts, as well as in Tertiary f...

Only 37 incomplete endocarps and fragments of Potamogeton wiesaensis Kirchheimer from the Nástup-Tušimice Mine and cores of KU 115 and MR 59, and one incomplete leaf assigned as Potamogeton praenatans Knoll from the Bílina Mine (horizon No. 1) are described from the Most Basin. These samples studied here stratigraphically belong to the Holešice, Li...

The present article re-evaluates the record of Early Miocene plant megafossils in the upper part of the Most Formation (Libkovice and Lom Members) according to current taxonomy, and applies the results to phytostratigraphical correlation.The characteristics of the floras have been studied, and palaeovegetation has been reconstructed based on leaf,...

A detailed morphological and anatomical study of the holotype of Schisandra moravica (MAI) Gregor from Šafov and additional seeds of the same species from the Cheb, Sokolov and Most Basins (Czech Republic) confirms the assignment of these fossil seeds to the genus Schisandra Michx. and provides morphological and anatomical information for detailed...

Fossil fruit with persistent corolla, which have been recorded in Europe, particularly from the Öhningen locality (middle Miocene of Germany), were originally assigned to the genus Porana Burm. (Convolvulaceae) by Heer. The present revision of Heer's material including the type and illustrated specimens has resulted in a new combination, Chaneya oe...

Plant fossils of Early Miocene age preserved in silty claystones occur in the incision of the Ohře River. The flora includes 23 taxa (2 conifers, 19 angiosperms and 2 taxa of uncertain systematic affinity). The reconstructed vegetation can be interpreted as a relatively temperate riparian forest with predominance of deciduous elements in moist habi...

The studied carpological material has been obtained from several cores which are situated in the Czech part of the Zittau Basin. Two conifers and 39 angiosperms (including 5 taxa with uncertain systematic position) have been identified from different stratigraphical levels of the above-mentioned cores, which stratigraphically belong to the roof of...

The flora of Přívlaky is bound to silty claystones to sandy siltstones, which occur in downcuting of the Ohře River. It includes 22 taxa of angiosperms - dicots. Vegetation can be interpreted as a relatively temperate riparian forest with dominance of deciduous elements on humid habitats. The flora of Přívlaky is correlated with the Upper Oligocene...

The present article gives the first results of the thesis of Jakub Sakala, concerning an interesting find of wood of Castanea-type from the Upper Oligocene sediments of the locality Velka‡ ‰Cernoc of northern Bohemia. This locality, together with other localities of the so-called "Neogene accumulations of central Bohemia", was recently studied in d...

The Tertiary floras from the localities Na Bendovce (Sv. Antonin) near Rakovnik, Klinec near Všenory and Na Sulavě near Černošice in Central Bohemia were studied in detail by Němejc (1949). The present revision of these floras is based on a new floristic investigation of fluvial sedimentary relicts in Central Bohemia (Teodoridis in press a, b) and...

For the first time modern quantitative techniques have been employed to the Pliocene floristic complex of the Sessenheim-Auenheim area in Northern Alsace, France, in order to objectively assess vegetation reconstruction (IPR vegetation analysis) and palacoclimatological estimates(CLAMP, CoA) basedon the recently revised leaf and carpological assemb...

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Vydáno v rámci projektu Evropského sociálního fondu OP RLZ 3.3.2(CZ.04.1.03/3.2.15.2/0201) "Standard vzdělávání v oboru environmentalistika - výchova a vzdělávání pro trvale udržitelný rozvoj života v ČR" Pod názvem: Unie Comenius

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