Fossil wood from the Doupovské hory and České středohoří volcanic complexes: latest overview and new angiosperms from the locality Dvérce

Koutecký, Vít; Teodoridis, Vasilis; Čáp, Pavel; Mantzouka, Dimitra; Sakala, Jakub

doi:10.1127/njgpa/2019/0842

Cited by 10 publications

(3 citation statements)

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“…Here I prefer to use the fossil genus name Ulmoxylon. The following identification key was prepared based on the 11 fossil species of Ulmus and Ulmoxylon (Platen, 1908;Watari, 1652;Greguss, 1969;Insidewood, 2004 onward;Privé-Gill et al, 2008;Wheeler and Dillhoff, 2009;Klusek, 2012;Koutecký and Sakala, 2015;Koutecky et al, 2019 According to the identification key, the present fossil wood differs from many fossil Ulmoxylon species in having storied axial parenchyma. The nearest fossil species are Ulmus woodi, Ulmoxylon scabroides and Ulmoxylon cf.…”

Section: Salicoxylon Galatianummentioning

confidence: 99%

A re-examination of the angiosperm wood record from the early and middle Miocene of Turkey, and new species descriptions

Akkemik¹

2021

Acta Palaeobotanica

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The early and middle Miocene in Turkey was characterised by a warm climate and a diversified and rich vegetation. Many fossil angiosperm genera have been identified from this period. The present study re-examined previously identified genera and identifed new samples of angiosperm wood remains. The studied material included thin sections housed at the Department of Forest Botany, Division of Forest Engineering, Faculty of Forestry, Istanbul University-Cerrahpasa, and also new ones. Twelve new species are described: Liquidambaroxylon efeae Akkemik sp. nov., Eucarpinoxylon kayacikii Akkemik sp. nov., Ostryoxylon gokceadaense Akkemik sp. nov., Quercoxylon yaltirikii Akkemik sp. nov., Cryptocaryoxylon grandoleaceum Akkemik sp. nov., Fraxinoxylon beypazariense Akkemik sp. nov., Prunoidoxylon prunoides Akkemik sp. nov., Populoxylon sebenense Akkemik sp. nov., Salicoxylon galatianum Akkemik sp. nov. Aceroxylon aceroides Akkemik sp. nov., Ulmoxylon kasapligilii Akkemik sp. nov. and Zelkovoxylon crystalliferum Akkemik sp. nov. In addition, four previously described species are documented for the early and middle Miocene: Pistacioxylon ufukii Akkemik and I. Poole, Fagoxylon radiatum Süss, Laurinoxylon litseoides Süss and Platanoxylon catenatum Süss and Müller-Stoll. In addition to the species descriptions, identification keys are given for all the genera recognised in this study, including all currently known fossil species of the respective fossil genera. These keys hold important new information, as they place the fossil species from Turkey in a wider taxonomic and biogeographic context. The results show that in the early and early-middle Miocene of Turkey a rich woody flora existed in well-drained upland or lowland and riparian areas. This flora comprised subtropical taxa along with warm-temperate taxa indicative of seasonality of rainfall as well as transitions to xeric conditions in the early Miocene.

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Section: Salicoxylon Galatianummentioning

confidence: 99%

A re-examination of the angiosperm wood record from the early and middle Miocene of Turkey, and new species descriptions

Akkemik¹

2021

Acta Palaeobotanica

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“…The more prevalent nodular domains, without the laminar structures, resemble calcareous tufa. They are more porous than their laminated counterparts, and probably represent travertines with cauliflower‐like structures (sensu Chafetz & Folk, 1984; Koutecký et al, 2019). Some samples have a dendritic fabric resulting from carbonate encrustation of plants (Figure 5B,D).…”

Section: Resultsmentioning

confidence: 99%

Interactions between distal epiclastic and bio‐chemogenic sedimentation at the foothills of a mafic alkaline volcano: The case of the Oligocene Doupovské Hory Volcanic Complex (Czech Republic)

Rapprich

Čáp

Kochergina

et al. 2023

The Depositional Record

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Late Oligocene (ca 25 Ma) volcano‐sedimentary successions exposed on the western periphery of the Doupovské Hory Volcanic Complex reveal a complex sedimentation history influenced in various ways by decay of the alkali basalt volcanic edifice. Weathering of the volcanic rocks supplied abundant reactants that promoted carbonate precipitation in the peripheral palaeolakes—as evidenced by strongly non‐radiogenic 87Sr/86Sr values (0.7038–0.7041). On the other hand, the sediments of the initial shallow lake became deformed by the bulldozing effect of a debris avalanche. The debris flow and avalanche deposits filled up the original depression, modified the basin morphology and shifted the peripheral lacustrine setting further away from the volcano. At this stage, surface water influx from the surrounding granites conferred a more radiogenic character (87Sr/86Sr values 0.7046–0.7049) to the calcrete deposits. Fossil assemblages as well as limestone textures suggest significant seasonal water‐level fluctuations, possibly reflecting the alternating rainy and dry‐seasons of a prevalently humid Central‐European Late Oligocene climate. The seasonal drying out of the ponds resulted in significant 18O enrichments. Although the ca 0‰ δ13C values might suggest mixing of atmospheric and volcanic CO2 during carbonate precipitation, no active volcanic conduits of relevant age are known in the close vicinity. The lower δ13C values are likely a result of mantle degassing through rift faults, a phenomenon observed in the magmatically extinct Ohře Rift until present. This paper demonstrates that limestones derived from weathered alkaline basalts are characterised by highly non‐radiogenic Sr isotopic ratios (87Sr/86Sr ca 0.704), suggesting a magmatic origin for the Ca within these carbonates. Contrary to the notion of carbonatites being present when highly non‐radiogenic Sr isotopes are found, these results show that Sr isotopes in carbonates formed in alkali basalt‐sourced environments only reveal the source of the Sr (and Ca) ions, not necessarily the presence of carbonatite.

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“…According to Walther and Kvaček (2007: 110), C. serrifolia, which in most cases was assigned to Oligocene -early Miocene material from Central Europe, may represent a descendant of this lineage in the late Neogene. Koutecký et al (2019) M a t e r i a l . Several fragments and incomplete leaves, impressions PA 1628, PA 1629, PA 1632, PA 1633, PA 1635-38, PA 1640, PA 1642, PA 1643, PA 1650, PA 1655-56, PA 1657, PA 1658 D e s c r i p t i o n .…”

Section: Systematic Palaeobotanymentioning

confidence: 99%

A new Oligocene flora from Ludvíkovice near Děčín (České středohoří Mts., the Czech Republic)

Teodoridis¹,

Kvaček²,

Radoň³

et al. 2020

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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 preserved without cuticles. Noteworthy are records of Daphnogene cinnamomifolia, Laurophyllum cf. acutimontanum, Platanus neptuni, Sloanea artocarpites, Carya fragiliformis / C. quadrangula, Alnus rhenana, Trigonobalanopsis rhamnoides, Eotrigonobalanus furcinervis and cf. Quercus sp. Several foliage specimens of dicots could not be identified to species level, i.e., Leguminophyllum sp., Pungiphyllum cf. cruciatum and Dicotylophyllum sp. div. The fossil plant assemblage of Ludvíkovice corresponds to zonal mesophytic vegetation accompanied by riparian elements. This is corroborated by the Integrated Plant Record vegetation analysis, which reconstructs a zonal broad-leaved evergreen forest similar to the living broad-leaved evergreen sclerophyllous forest from Southern Hunan and Northern Guangxi in SE China. The vegetation thrived under a humid climate characterized by average values of MAT (14.6–24.1 °C), WMMT (24.7–28.3 °C), CMMT (2.2–18.8 °C) and MAP (979–1724 mm). The fossil flora of Ludvíkovice is similar in composition to the floras of Markvartice, Veselíčko, also from the Oligocene Děčín Formation of the České středohoří Mts. and the Hrazený hill.

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Fossil wood from the Doupovské hory and České středohoří volcanic complexes: latest overview and new angiosperms from the locality Dvérce

Cited by 10 publications

References 0 publications

A re-examination of the angiosperm wood record from the early and middle Miocene of Turkey, and new species descriptions

A re-examination of the angiosperm wood record from the early and middle Miocene of Turkey, and new species descriptions

Interactions between distal epiclastic and bio‐chemogenic sedimentation at the foothills of a mafic alkaline volcano: The case of the Oligocene Doupovské Hory Volcanic Complex (Czech Republic)

A new Oligocene flora from Ludvíkovice near Děčín (České středohoří Mts., the Czech Republic)

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