current marks
© Otava, Jiří | 2005
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transgression of Badenian conglomerates
© Otava, Jiří | 2005
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shells of Ostrea digitalina
© Otava, Jiří | 2005
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Uhlířský vrch
© Otava, Jiří | 2010
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Uhlířský vrch
© Otava, Jiří | 2010
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oyster
© Otava, Jiří | 2003
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Basal gravel
© Otava, Jiří | 2005
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sinkhole
© Otava, Jiří | 2003
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pendant
© Otava, Jiří | 2007
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Cenomanian coal
© Otava, Jiří | 2014
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Pectens
© Otava, Jiří | 2004
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sandstone, siltstone
© Otava, Jiří | 2005
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Loess
© Otava, Jiří | 2015
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Hranice Abyss
© Otava, Jiří | 2004
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Pecten coquina
© Otava, Jiří | 2004
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terra rossa
© Otava, Jiří | 2014
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side moraine
© Otava, Jiří | 2018
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sinkhole line
© Otava, Jiří | 1980
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© Otava, Jiří | 2023
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© Otava, Jiří | 2023
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© Otava, Jiří | 2023
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© Otava, Jiří | 2023
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gravel and speleothem
© Otava, Jiří | 2015
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