  The main facts of the geometry of Finslerian 4-spinors are formulated. It is
shown that twistors are a special case of Finslerian 4-spinors. The close
connection between Finslerian 4-spinors and the geometry of a 16-dimensional
vector Finslerian space is established. The isometry group of this space is
described. The procedure of dimensional reduction to 4-dimensional quantities
is formulated.
