The earliest forms of laminar organization are shown in the diploblastic and triploblastic formation of the germ layers in the embryo.

This is the trilaminar disc and the epiblast cells have given rise to the three germ layers.

[3] The cerebral cortex, the outer neural sheet covering the cerebral hemispheres can be described by its laminar organization, due to the arrangement of cortical neurons into six distinct layers.

There are three main layers – the outer fibrous tunic, the middle uvea, and the inner retina.

[4] These layers have sublayers with the retina having ten ranging from the outer choroid to the inner vitreous humor and including the retinal nerve fiber layer.