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Wyszukujesz frazę "fossil wood" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Xenoxylon synecology and palaeoclimatic implications for the Mesozoic of Eurasia
Autorzy:
Oh, C.
Philippe, M.
Kim, K.
Powiązania:
https://bibliotekanauki.pl/articles/945484.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
paleontology
fossil wood
Xenoxylon
phytocoenosis
paleoecology
paleoclimate
Mesozoic
Eurasia
Opis:
The distribution of fossil wood genera has been demonstrated to be an effective proxy for Mesozoic terrestrial climates. In this study, we investigated the phytocoenoses, which were associated with Xenoxylon confirmed to be a marker for a cool and/or wet climate in a boreal hemisphere (i.e., Xenoxylon-phytocoenoses) during the Mesozoic, using specimens of fossil wood. It was confirmed that Xenoxylon co-occurs more often with some wood genera than with others. For example, Protocedroxylon, a wood that is most likely related to the Pinaceae, is the genus most often associated with Xenoxylon-phytocoenoses. Although Taxodioxylon is also found in Xenoxylon-phytocoenoses, it is not found, however, as consistently as Protocedroxylon. The distribution and diversity of Xenoxylon-phytocoenoses changed throughout the Mesozoic. During the Late Triassic and Late Cretaceous, Xenoxylon-phytocoenoses had low diversity and were restricted to higher palaeolatitudes during the Late Cretaceous. However, during the Early to Middle Jurassic, Xenoxylon-phytocoenoses were distributed much farther south, while their diversity concomitantly increased sharply. From the Late Jurassic to the Early Cretaceous, the distribution of Xenoxylon phytocoenoses moved northward in Europe and even more so in East Asia. The changes in the distribution of Xenoxylon-phytocoenoses are in agreement with changes in both global and regional climates. Our results also demonstrated that, within the Xenoxylon distribution range, the corresponding phytocoenoses were differentiated along a latitudinal gradient and according to the global climate change patterns during the Mesozoic.
Źródło:
Acta Palaeontologica Polonica; 2015, 60, 1; 245-256
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Miocene coniferous woods of the Polish Carpathian Foredeep
Autorzy:
Klusek, M.
Powiązania:
https://bibliotekanauki.pl/articles/945876.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
paleoecology
fossil
wood
wood anatomy
Coniferophyta
Miocene
coniferous wood
Polska
Carpathian Foredeep
Opis:
This paper presents the results of analysis of the Miocene woods collected from three sampling sites in the Polish part of the Carpathian Foredeep. The location in the stratigraphic profile and the state of fossil preservation indicate that the woods were transported by waters flowing from highland or from mountainous regions and then deposited and fossilised in delta areas. Fragments of 16 lignified or silicified woods were collected for anatomical research. The fossil woods were classified as Piceoxylon piceae, Juniperoxylon pachyderma, Cupressinoxylon canadense and Cupressinoxylon polonicum. Disturbance zones observed in Cupressinoxylon polonicum are interpreted as frost rings. Frost rings suggest that despite the documented existence of warm and humid climatic conditions during the Miocene period, the temperatures in mountainous areas could temporarily drop below freezing point.
Źródło:
Acta Palaeontologica Polonica; 2014, 59, 3; 697-708
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Terrestrial-aquatic wood-inhabiting ascomycete Potamomyces from the Miocene of Poland
Autorzy:
Worobiec, G.
Worobiec, E.
Gedl, P.
Kasiński, J.R.
Peryt, D.
Widera, M.
Powiązania:
https://bibliotekanauki.pl/articles/31341378.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
fungi
paleoecology
paleoenvironment
non-pollen type
palynomorph
microscopic fossil
fungal ascospore
Potamomyces affinities
locality
Potamomyces invaginatus
Potamomyces batii
Potamomyces pontidiensis
Potamomyces armatisporus
Neogene
terrestrial-aquatic wood
Ascomycetes
Potamomyces
Miocene
Polska
Źródło:
Acta Palaeontologica Polonica; 2022, 67, 3; 737-744
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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