Early occurrence of a Pennsylvanian-age medullosalean frond similar to Alethopteris pseudograndinioides in the intra-montane basin of Bohemia

Stránky 37-44
DOI 10.2478/if-2018-0003
Klíčová slova Palaeobotany, Medullosales, Westphalian, Alethopteris
Citace ŠIMŮNEK, Zbyněk a CLEAL, Christopher J.. Early occurrence of a Pennsylvanian-age medullosalean frond similar to Alethopteris pseudograndinioides in the intra-montane basin of Bohemia. Fossil Imprint / Acta Musei Nationalis Pragae, Series B – Historia Naturalis. Praha: Národní muzeum, 2018, 74(1-2), 37-44. DOI: https://doi.org/10.2478/if-2018-0003. ISSN 2533-4050 (tisk), 2533-4069 (online). Dostupné také z: https://publikace.nm.cz/periodicke-publikace/fiamnpsbhn/74-1-2/early-occurrence-of-a-pennsylvanian-age-medullosalean-frond-similar-to-alethopteris-pseudograndinioides-in-the-intra-montane-basin-of-bohemia
Fossil Imprint / Acta Musei Nationalis Pragae, Series B – Historia Naturalis | 2018/74/1-2

A single frond fragment found in the lower Bolsovian Substage of Central and Western Bohemia (the Czech Republic) closely resembles Alethopteris pseudograndinioides Zodrow et Cleal, a species not normally seen until rather younger, late Asturian floras. This discovery provides further evidence that some of the species that suddenly proliferated in mid-Asturian times in response to climate and/or landscape changes, originated in the upland vegetation of the Variscan Mountains.

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