Ferns of the Lower Jurassic from the Mecsek Mountains (Hungary): taxonomy and palaeoecology

Ferns are the most diverse group in the Early Jurassic plant assemblage of the Mecsek Mountains in southern Hungary and, considering their abundance and diversity, are an important element of the flora. Five families were recognized so far from the locality; these are, in order of abundance, the Dip...

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Bibliographic Details
Published in:Palàˆontologische Zeitschrift 2019-03, Vol.93 (1), p.151-185
Main Authors: Barbacka, Maria, Kustatscher, Evelyn, Bodor, Emese R.
Format: Article
Language:English
Subjects:
Abundance
Cluster analysis
Earth and Environmental Science
Earth Sciences
Ecological succession
Ferns
Flora
Jurassic
Leaves
Mountains
Palaeoecology
Paleontology
Paraleptophlebia kirchneri
Plants
Research Paper
Taxa
Taxonomy
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Summary:Ferns are the most diverse group in the Early Jurassic plant assemblage of the Mecsek Mountains in southern Hungary and, considering their abundance and diversity, are an important element of the flora. Five families were recognized so far from the locality; these are, in order of abundance, the Dipteridaceae (48% of collected fern remains), Matoniaceae (25%), Osmundaceae (21%), Marattiaceae (6%) and Dicksoniaceae (three specimens). Ferns are represented by 14 taxa belonging to nine genera: Marattiopsis hoerensis , Todites princeps , Todites goeppertianus , Phlebopteris angustiloba , Phlebopteris kirchneri Barbacka and Kustatscher sp. nov., Matonia braunii , Thaumatopteris brauniana , Clathropteris meniscoides , Dictyophyllum nilssoni , Dictyophyllum rugosum , Cladophlebis denticulata , Cladophlebis haiburnensis , Cladophlebis roessertii , and Coniopteris sp. Ferns from the Mecsek Mts. are rarely found in association with other plants. They co-occur mostly with leaves of Nilssonia , leaflets of Sagenopteris , and rarely with other plants. The most commonly co-occurring fern species is P. kirchneri Barbacka and Kustatscher sp. nov. According to our statistical approach (PCA, Ward cluster analysis), the fern taxa cluster in four groups corresponding to their environmental preferences, determined by moisture and disturbance. Most taxa grew in monospecific thickets in disturbed areas; a few probably formed bushes in mixed assemblages, whereas one taxon, P. kirchneri , probably was a component of the understorey in a stable, developed succession of humid environments.
ISSN:0031-0220
1867-6812
DOI:10.1007/s12542-018-0430-8