Persistence of Moro's reflex is abnormal beyond the age of –
"In a normal infant, the Moro's reflex begins to fade at three months of age and gradually disappears at 4-6 months.
When it persists beyond 6 months it indicates a delay in CNS development." ---------- Tachdjian
"Moro's reflex disappears by six months in a normal infant." ------------ Ghai
3rd month
4th month
5th month
6th month