- 1. Branchiostoma, anterior pharynx with gills and notochord t.s. Lieder_5803d
- 2. Chicken, 24 hour, t.s. with neural groove, notochord, germ layers Lieder_8201f
- 3. Frog, neurula, t.s. showing primordium of notochord, entoderm with primary intestinal cavity Lieder_8304f
- 4. Frog, early tail bud stage, t.s. with neural tube, notochord Lieder_8305f
- 5. Branchiostoma, anterior pharynx showing gills and notochord t.s. Lieder_Ac108d
- 6. Scyllium, vertebral column with spinal cord and notochord, t.s. Lieder_Pi117e
- 7. Frog, early tail bud stage, near median sagittal l.s. with forebrain, neural tube, notochord, Lieder_Em617g
- 8. Chicken, 24 hour, t.s. with neural groove, notochord, germinal layers, somites Lieder_Em704f
- 9. Chicken, 36 hour, t.s. with neural tube, notochord, differentiation of mesoderm (myotom, nephrotom Lieder_Em705f