part of part of in lateral side of overlaps overlaps contributes to morphology of Amphibia Homo sapiens lacrimal bone http://upload.wikimedia.org/wikipedia/commons/2/2d/Gray164.png lachrymal bone lachrymal bone - infraorbital 1 VHOG:0001149 os lacrimale infraorbital 1 In early lobe-finned fishes and ancestral tetrapods, the lacrimal bone is a relatively large and robust bone, running from the orbit to the nostrils. It forms part of the side of the face, between the nasal bones and the maxilla. In primitive forms, it is often accompanied by a much smaller septomaxilla bone, lying immediately behind the nasal opening, but this is lost in most modern species. The lacrimal bone is often smaller in living vertebrates, and is no longer always directly associated with the nasal opening, although it retains its connection with the orbit. The bone is entirely absent in living amphibians, as well as some reptilian species[ISBN 0-03-910284-X] lacrymal bone - infraorbital 1 UBERON:0001680 The irregularly thin plate that forms part of the medial wall of the orbit behind the frontal process of the maxilla. UMLS:C0222733 The infraorbital bone 1 of actinopterygians is homologous with the lacrimal bone (...).[well established][VHOG] NCIT:C32906 lacrimal Wikipedia:Lacrimal_bone lacrymal bone lacrimal - infraorbital 1 FMA:52741 ectethmoid SCTID:272675007 MA:0001486 orbit of skull dermatocranium facial bone irregular bone dermal bone skeletal element of eye region facial skeleton lateral structure preorbital bone region