Biophysics of development is progressing steadily. It is recognized that formation of organs is a biomechanical process including stresses and deformations. From a theoretical point of view, it is necessary to include forces in tissue development to understand how forms unfold. However, living tissue is not a uniform material, it is composed of cells, and cells tend to form organized layers. We present a theoretical framework which is able to produce biological forms from a plate theory coupled to an active nematoïd field. The theory consists of a von Karman plate equation coupled to a-tensor dynamics, however, in this description the-tensor is not a static description of a nematoïd field but the actuator of a field of force. The-tensor serves as active stress in the von Karman equation to generate thin plate out-of-plane deformations (buckling). A simple application of this model is presented: the formation of fingerprints. The model is able to easily produce fingerprints, including potentially actual fingerprints.