Vörös A. szerk.: Fragmenta Mineralogica Et Palaentologica 10. 1981. (Budapest, 1981)

negative correlation between J" and log2S. A weaker positive correlation exists between H" and s, and there is a poor negative correlation between H'

1 and J' ' . With such a poor sampling the negative correlation observed between H^ff and R

0 can also be registered as poor. °9 s BARQMÁLLÁ; > 1 "ATABÁNYA TARJÁN logs •TT" °9 s 1 logs •TT" J' J' BAROMÁLLÁ TATABÁNYA TATABÁNYA TARJÁN 3AROMÁLLA TARJÁN s Fig. 3 Comparison of the Oligocène floras by means of quantitative method. The first line of the figure demonstrates the diversity of floras and shows the rate between diversity and number of species. The dotted line indicates the average values of the three floras. The second line of the figure shows the equitability of the floras and the difference of the average equitability. The third line demonstrates the diversity difference of the compared floras DISCUSSION The quantitative evaluation is relatively rarely used In palaeontology. Many scientists do not attach great importance to specimen numbers and reason that it is purely accidental how many