A rare late Mississippian flora from Northwestern Europe (Maine-et-Loire Coalfield, Pays de la Loire, France)
نویسندگان
چکیده
Numerous localities in the Maine-et-Loire coalfield northwestern France have yielded diverse adpression floras belonging to Calymmotheca stangeri Zone, indicating an early Namurian (Serpukhovian–late Mississippian) age. The floristic affinities are with South European Palaeoprovince, although there is some evidence of ecotonal relationship Central Palaeoprovince north. geological context deposits suggest that may represent vegetation from intra-montane setting, at lower elevations compared Pennsylvanian-age Variscan basins. This represents earliest known examples coal swamp vegetation, Pennsylvanian-aged swamps was a significantly higher proportion lycopsid species and medullosaleans. Most fossiliferous assemblages lycopsids, equisetopsids, ferns species, these were used develop pictorial reconstruction this vegetation. However, two adpressions associated palynofloras greater predominance lycopsids sphenopsids, suggesting wetter habitats. Two other more Pennsylvanian aspect such as Cardioneuropteris Karinopteris, which drier substrate
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ژورنال
عنوان ژورنال: Review of Palaeobotany and Palynology
سال: 2021
ISSN: ['1879-0615', '0034-6667']
DOI: https://doi.org/10.1016/j.revpalbo.2020.104359