Presence of a distinct eye
Presence of a distinct nasal pit
Presence of a distinct nasolacrimal groove (primordium of nasolacrimal duct)
Presence of a distinct hand plate
Presence of a distinct foot plate
Development of auricular hillocks around the first branchial groove (primordium of external acoustic meatus)
Fusion of auricular hillocks and formation of the auricle of the external ear.