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"Frontiers in Bioscience"

PLATE NUMBER

STAGE

TIME

ORIENTATION

IMAGE

23

Mid-neural fold stage

Embryo stage 16

18 h 15 min p.f.

Dorsal

Posterior Anterior

Ventral

Parasagittal section

Mid-neural fold stage (embryo stage 16)

At this stage, the eye is formed from the anterior neural plate.