part_of part of part of contained in existence overlaps existence starts during or after material entity Stage 7 Stage 8 eye optic cup PMID:30194301 PMID:27240733 PMID:29547123 PMID:20865784 A portion of the eye containing pigment cells and dendritic projections from photoreceptor neurons. PMID:25493551 PMID:22411224 eye cup PMID:27068018 photoreceptor pigmentation PMID:28495872 PMID:22445864 PMID:26017970 PMID:27542689 pigmented cell cup PMID:22427692 PMID:27606067 PMID:22884275 photoreceptor pigment cup PMID:21852957 PMID:22549959 Planarian_Anatomy pigment cup PMID:30143032 PMID:27800171 PMID:26618653 pigmented optic cup PMID:21458439 ISBN:9780070316607 https://orcid.org/0000-0003-2569-1939 | https://orcid.org/0000-0002-7535-4407 UBERON:0003072 PMID:20707997 PMID:15866156 PMID:21828097 tissue anterior region of the whole animal dorsal region of the whole animal juvenile stage head region adult hermaphrodite asexual adult