  The fundamental action of superon-graviton model(SGM) for space-time and
matter is written down explicitly in terms of the fields of the graviton and
superons by using the affine and the spin connection formalisms, alternatively.
Some characteristic structures including some hidden symmetries of the
gravitational coupling of superons are manifested (in two dimensional
space-time) with some details of the calculations. SGM cosmology is discussed
briefly.
