start stage end stage CNS neuron (sensu Vertebrata) Cajal-Retzius cell ZFA:0009300 CL:0000695 zebrafish_anatomy Cajal-Retzius cells One of a transient population of pioneering neurons in the cerebral cortex. These cells are slender bipolar cells of the developing marginal zone. One feature of these cells in mammals is that they express the Reelin gene. TAO:0009300 unknown adult