has part has part has_part immediately deep to immediately superficial to hippocampal mossy fiber layer of hippocampus hippocampus pyramidal layer hippocampus stratum radiatum hippocampus stratum lucidum stratum lucidum hippocampus Layer of hippocampus area CA3 lying superficial to the pyramidal cell layer that contains mossy fiber axons projecting from the dentate gyrus. A slight thickening in this layer marks the border in some species between areas CA2 and CA3. dapted from Paxinos, G. The rat central nervous system, 2nd ed, Academic Press, San Diego, 1995, pg. 460). neuronames:1777 BAMS:SLu EMAPA:35411 BIRNLEX:4108 Wikipedia:Stratum_lucidum_of_hippocampus stratum lucidum UBERON:0007637