measurementID occurrenceID measurementOfTaxon parentMeasurementID measurementType measurementValue measurementRemarks bibliographicCitation source referenceID 1 Onychophora TRUE http://purl.obolibrary.org/obo/UBERON_0002104 https://eol.org/schema/terms/corneal_eyes Mayer, G. 2006. Structure and development of onychophoran eyes: What is the ancestral visual organ in arthropods? Arthropod Structure & Development, Volume 35, Issue 4, Pages 231-245 https://doi.org/10.1016/j.asd.2006.06.003 2 1 https://eol.org/schema/terms/starts_at 6927 3 1 http://purl.obolibrary.org/obo/PATO_0000140 one behind each antenna 4 1 https://eol.org/schema/terms/stops_at 1041257 5 1 https://eol.org/schema/terms/stops_at 347392 6 1 https://eol.org/schema/terms/stops_at 347394 7 1 http://purl.obolibrary.org/obo/PATO_0000133 https://eol.org/schema/terms/everse