Term Name:	Spemann organizer formation at the dorsal lip of the blastopore
Synonyms:	Spemann's organizer formation at the dorsal lip of the blastopore, Spemann-Mangold organizer formation at the dorsal lip of the blastopore
Definition:	Formation of the specialized region at the dorsal lip of the blatopore of the embryo that acts as the main signaling center establishing the vertebrate body plan.
Ontology:	GO: Biological Process [GO:0060062]    QuickGO    AmiGO