part of part of dorsal plus ventral thalamus stratum zonale of thalamus FMA:83905 UBERON:0002801 stratum zonale thalami The thalamus consists chiefly of gray substance, but its upper surface is covered by a layer of white substance, named the stratum zonale. BIRNLEX:1727 BAMS:SZ Wikipedia:Stratum_zonale_of_thalamus HBA:265505326 DHBA:12085 neuraxis stratum stratum zonale of the thalamus neuronames:374 diencephalic white matter