| branchial arch | http://purl.obolibrary.org/obo/MAT_0000059 | branchial arch | |
| extraembryonic component | http://purl.obolibrary.org/obo/MAT_0000061 | extraembryonic tissue | |
| extraembryonic structure | http://purl.obolibrary.org/obo/MAT_0000061 | extraembryonic tissue | |
| extraembryonic tissue | http://purl.obolibrary.org/obo/MAT_0000061 | extraembryonic tissue | |
| fin bud | http://purl.obolibrary.org/obo/MAT_0000062 | fin bud | |
| gastrula | http://purl.obolibrary.org/obo/MAT_0000063 | gastrula stage | |
| gastrula stage | http://purl.obolibrary.org/obo/MAT_0000063 | gastrula stage | |
| gastrulating mbryo | http://purl.obolibrary.org/obo/MAT_0000063 | gastrula stage | |
| imaginal disc | http://purl.obolibrary.org/obo/MAT_0000064 | imaginal disc | |
| limb bud - forelimb | http://purl.obolibrary.org/obo/MAT_0000065 | limb bud - forelimb | |
| upper limb bud | http://purl.obolibrary.org/obo/MAT_0000065 | limb bud - forelimb | |
| neural crest - early | http://purl.obolibrary.org/obo/MAT_0000066 | neural crest - early | |
| blastocyst | http://purl.obolibrary.org/obo/MAT_0000067 | epiblast | |
| epiblast | http://purl.obolibrary.org/obo/MAT_0000067 | epiblast | |
| somites | http://purl.obolibrary.org/obo/MAT_0000068 | somite | |
| somite | http://purl.obolibrary.org/obo/MAT_0000068 | somite | |
| neural tube | http://purl.obolibrary.org/obo/MAT_0000069 | neural tube | |
| ventral nerve cord primordium | http://purl.obolibrary.org/obo/MAT_0000069 | neural tube | |
| tail bud | http://purl.obolibrary.org/obo/MAT_0000070 | tail bud | |
| adrenal gland | http://purl.obolibrary.org/obo/MAT_0000071 | adrenal gland | |
| adrenal medulla cell | http://purl.obolibrary.org/obo/MAT_0000071 | adrenal gland | |
| gall bladder | http://purl.obolibrary.org/obo/MAT_0000072 | gall bladder | |
| mammary gland | http://purl.obolibrary.org/obo/MAT_0000073 | mammary gland | |
| lactiferous gland | http://purl.obolibrary.org/obo/MAT_0000073 | mammary gland | |
| fertilized egg stage | http://purl.obolibrary.org/obo/MAT_0000074 | fertilized egg stage | |
| zygote | http://purl.obolibrary.org/obo/MAT_0000074 | fertilized egg stage | |
| one-cell stage | http://purl.obolibrary.org/obo/MAT_0000074 | fertilized egg stage | |
| pancreas | http://purl.obolibrary.org/obo/MAT_0000075 | pancreas | |
| pancreatic islet | http://purl.obolibrary.org/obo/MAT_0000076 | islet of Langerhans | |
| islet of Langerhans | http://purl.obolibrary.org/obo/MAT_0000076 | islet of Langerhans | |