deep to immediately superficial to composed primarily of pyramidal neuron layer of hippocampus hippocampus pyramidal layer BTO:0001066 pyramidal cell layer of the hippocampus FMA:83895 hippocampus pyramidal cell layer EMAPA:35409 hippocampal pyramidal layer stratum pyramidale hippocampi pyramidal layer of hippocampus MA:0000956 EDITOR_NOTE this layer changes in its depthwise spatial relation across its extent A cytoarchitectural term denoting the layer of the hippocampus in which pyramidal cells are predominant. Its location is superficial to the Stratum oriens; it is deep to the Stratum radiatum in area CA1 and area CA2 and deep to the Stratum lucidum in area CA3 (Stephan-75) (NeuroNames). BAMS:Py stratum pyramidale hippocampal pyramidal cell layer hippocampus stratum pyramidale UBERON:0002313 UBERON:0005369 BIRNLEX:1444 hippocampus stratum oriens hippocampus stratum lucidum