B. Papp szerk.: Studia Botanica Hungarica 35. 2004 (Budapest, 2004)

Erdei, B.; Bruch, A. A.: A climate analysis of Late Oligocene (Egerian) macrofloras from Hungary

odological constraints, i.e. wide range of coexistence intervals for the climate variables. Due to the lithological character of the fossiliferous matrix (e.g. sandstone) preservation of fossils (macromorphologically preserved) did not allow a more accurate taxonomic identification which resulted in a high number of higher level taxa (e.g. family). COMPARISON WITH CLIMATE ESTIMATES OF COEVAL PALYNO-FLORAS FROM THE EASTERN ALPS A climate analysis adopting the Coexistence Approach to numerous Oligocène palyno-floras of the Eastern Alps/Central Paratethys has been so far applied by BRUCH (1998). Four of those more or less coeval sites were chosen for a comparison, i.e. Eger-Wind (pollen), Treubach (Treubach 1 in BRUCH 1998, Southern Germany), Como (Northern Italy) and Govce (Slovenia). Coexistence intervals of the four climate variables are showed by Table 4. Values of MAT and WMT for the Eger-Wind/pollen and Treubach assemblages fit the best to those of the Egerian datasets. In the case of the Como and Govce palyno-floras resultant minimum values of MAT and WMT are lower than for the Egerian datasets. Coexistence intervals of CMT display lower limits of values in all palyno-floras than for the macroflora-based Egerian datasets. The distinction between estimates of the temperature variables (CMT in all cases and slight difference in values of MAT) for the palyno-flora and macroflora-based datasets may be attributed to the distinctive depositional and taphonomical character of leaves and pollen, i.e. palyno-floras may comprise elements of the regional flora and vegetation in addition to the local plant cover represented mostly by leaf-floras. Coexistence interval of MAP for the Govce flora is consistent with most Egerian datasets, whereas intervals for the other palyno-floras display narrower ranges of intervals with higher values similarly to the Eger 3 and Eger combined datasets. To sum up, the Eger-Wind/pollen and Treubach assemblages display results well in accordance with results of the Hungarian Egerian floras, i.e. comparable climate is indicated by both. Intervals of MAT for the Govce and Como palynofloras indicate, however, lower minimum values of MAT which may be attributable either to palaeogeography (tectonic development of the area) or to methodology, i.e. palyno-floras versus leaf-floras used for climate calculations, with a more regional climate signal given by pollen and a climate signal given by macroremains pointing to local microclimatic conditions.