Abstract
In 1969 a new Danish fossil flora was found in the Søby-Fasterholt area near Herning. The fossil flora, called the Søby Flora, is found in a clay bed at the top of the Odderup Formation. The bed is succeeded by the Middle Miocene Hodde Clay, itself overlain by Upper Miocene Glauconite Clay. The Gram Clay, containing marine fossils is found a few km further south, and forms a biostratigraphical indicator level. The fossil plants, and especially the leaves, are well preserved. This paper is the first part of the systematic description, treating the following species: Pinus thomasiana (Goepp.) Reichenbach, Taxodium dubium (Sternb.) Heer, Smilax weberi Wessel and Comptonia acutiloba Brongniart. In the present paper the reader will find the epidermis of Smilax weberi and that of Comptonia acutiloba described for the first time.
Highlights
During the years 1969-1973 the Phytopalaeontological Department, Geological Institute, Aarhus University, concentrated its efforts on a field project in the S0by open-cast mining area SE of Heming, Central Jutland
The size of the best preserved fossil cones from S0by lies within the size variation of Pinus thomasiana given by Heer (1869, p. 22), and the S0by fossils are to be considered as medium-sized cones
The cones in question seem to correspond to the variant of P. thomasiana described under d) by Heer (1869, p. 23)
Summary
During the years 1969-1973 the Phytopalaeontological Department, Geological Institute, Aarhus University, concentrated its efforts on a field project in the S0by open-cast mining area SE of Heming, Central Jutland (fig. 1). While he was a participiant in this project the author discovered a very rich fossil flora in the mining section "Damgaards leje" in the abandoned open-cast mine "Damgaard N", fig. This paper is the first of a number of publications in which the author will describe the S0by Flora This and some of the following papers will be mainly descriptive and will concentrate on the taxonomical problems and the collection of the information on which the final conclusions will be founded. The dating of the limnic deposits which contain such fossils is difficult and often imprecise, so that on this account too, there are far too many possibilities for error , to justify a general conclusion
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