VL(left)M1l

Cell lineage of regularly developing sea urchin embryo: VL(left)M1l

Cell name	VL(left)M1l
Cleavage number	6
Number of cells after cleavage	60
Cleavage direction (with respect to the A/V axis)	horizontal
Mother cell	VL(left)M1
Sister cell	VL(left)M1u
Progeny
Tier	veg2
Prospective territory	Vegetal plate (lineage founder cell)