When the New York Court of Appeals issued its landmark 2016 ruling to expand the definition of parenthood to nonmarried ex-partners of biological parents, it left open the question of how such a parent could have standing to seek custody without a preconception agreement.

But a Long Island trial court has become the first to offer an answer, ruling that a woman who was part of a now-defunct same-sex relationship may assert the same standing as nonbiological fathers in similar predicaments who seek custodial rights.