convergent extension involved in gastrulation
The morphogenetic process in which an epithelium narrows along one axis and lengthens in a perpendicular axis usually resulting in the formation of the three primary germ layers, ectoderm, mesoderm and endoderm.
GO:0048598
embryonic morphogenesis
is_a
GO:0060026
convergent extension
is_a
GO:0007369
gastrulation
part_of