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    A stem of an arborescent lycopsid Sigillaria with attached rooting organs Stigmaria from the Pennsylvanian of the Donets Basin, eastern Ukraine by Vitaly Dernov, Halyna Anfimova

    Published 2024-12-01
    “…The latter trunk is currently on display at the National Museum of Natural History, National Academy of Sciences of Ukraine. Stigmaria represents root organs of several families of tree-like lycopsids, i.e. they are a classic form-genus. …”
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