California Code, Probate Code - PROB § 249.7

If the written notice required pursuant to Section 249.5 is not given in a timely manner to any person who has the power to control the distribution of either the decedent's property or death benefits payable by reason of the decedent's death, that person may make the distribution in the manner provided by law as if any child of the decedent conceived after the death of the decedent had predeceased the decedent without heirs. Any child of a decedent conceived after the death of the decedent, or that child's representative, shall be barred from making a claim against either the person making the distribution or the recipient of the distribution when the claim is based on wrongful distribution and written notice has not been given in a timely manner pursuant to Section 249.5 to the person making that distribution.