  The thermal fluctuations contribution to magnetization and
magneto-conductivity of type II layered superconductor is calculated in the
framework of Lawrence-Doniach model. For numerous high temperature cuprate
superconductors, it was discovered that the magnetization dependence on
temperature in wide range of fields exhibits an intersection point at a
temperature slightly below $T_{c}$. We notice a similar intersection point of
the magneto-conductivity curves at the approximate same temperature. The
phenomenon is explained by strong (non-gaussian) thermal fluctuations with
interactions treated using a self-consistent theory. All higher Landau levels
should be included. Dimensionality of the fluctuations is defined and the 2D-3D
dimensional crossover is the key for the existence of intersection points.
