Original paper

The first plant megafossil in the Early Jurassic of Greece: Brachyphyllum (Coniferales) from the Lower Posidonia Beds (Toarcian) in the Ionian zone (NW Greece) and its palaeogeographic implications

Karakitsios, Vasileios; Kvaĉek, Zlatko; Mantzouka, Dimitra


General information on the geology of the Lower Jurassic in the Hellenides is presented, focused on the Chionistra section, where the first land plant macrofossil was recovered. This specimen is interpreted as a new record of Brachyphyllum elegans (Saporta) Barale and compared with the type material from the Upper Jurassic of France and some other Mesozoic fossils of this kind from Eurasia. Its stomatal complexes with papillate subsidiary cells and the co-occurrence with abundant Classopolis pollen indicate an affinity to the Cheirolepidiaceae. The reconstructed environment usually assigned to the Brachyphyllum nepos type may suggest mangrove-like vegetation that thrived under tropical- subtropical climatic conditions. Moreover, the finding of Brachyphyllum elegans (Saporta) Baralefrom the Lower Jurassic (Toarsian) of western Greece provides confirmation of the palaeogeographic evolution model of the Ionian zone during this period.


lower jurassicionian zonecheirolepidiaceaehellenidesbrachyphyllum