Review of the late Oligocene flora of Matrý near Sebuzín (České středohoří Mts., the Czech republic)
Abstrakt
The Oligocene palaeontological locality on Matrý Hill near Sebuzín in the České středohoří Mts., North Bohemia, belongs to the Děčín Formation and is dated to 30.8-24.7 Ma according to the regional stratigraphy. It has yielded besides insects of Heteroptera, a fossil bean Apis petrefacta and frogs of Palaeobatrachids, also numerous plant remain, which have been recovered since 1996.
The plant fossil assemblage consists of mostly leaf impressions rarely accompanied by casts or impressions of fruits. Noteworthy are records of a fern Woodwardia muensteriana, conifers Pinus rigios, P. hepios, Calocedrus suleticensis, Tetraclinis salicornioides, Torreya bilinica, Cephalotaxus parvifolia and numerous angiosperms, e.g.
Liriodendron haueri, Daphnogene cinnamomifolia, Platanus neptuni, Cercidiphyllum crenatum, Sloanea artocarpites, Ulmus pyramidalis, Celtis pirskenbergensis Carya fragiliformis, C. quadrangula, Betula brongniartii, B. dryadum, Alnus rhenana, A. cf. kefersteinii, Carpinus grandis, Ostrya atlantidis, Acer crenatifolium, A. cf. palaeosaccharinum, A. integrilobum and Craigia bronnii. Several angiosperm foliage of monocots and dicots has not been identified to a particular genera and species.
The fossil plant assemblage of Matrý corresponds to two vegetation types, i.e. azonal riparian forest and zonal mixed mesophytic forest, as corroborated by the Integrated Plant Record vegetation analysis. The vegetation thrived under humid climate characterized by average values of MAT (13.4°C) WMMT (23.8 °C), CMMT (3.6 °C) and MAP (1117 mm).
The fossil flora of Matrý is similar in composition to the flora of Žichov from the same late Oligocene Děčín Formation of the České středohoří Mts.