A thickening of the surface ectoderm on the ventral side of the embryonic tail which resembles the apical ectodermal ridge of the limb bud. [ http://www.ncbi.nlm.nih.gov/pubmed/7486014 ]

This is just here as a test because I lose it

Term information

development notes

A group of ectodermal cells that serves as an important signaling center in the mouse tail-bud following completion of gastrulation, and contains progenitor cells that contribute to the ventral midline ectoderm of the tail; ablation of the VER leads to defects in somitogenesis and tail elongation[MP]