Term Name:	sinoatrial valve formation
Synonyms:	SA valve formation
Definition:	The developmental process pertaining to the initial formation of the sinoatrial valve from unspecified parts. This process begins with the specific processes that contribute to the appearance of the discrete structure and ends when the structural rudiment is recognizable.
Ontology:	GO: Biological Process [GO:0003194]    QuickGO    AmiGO