| Blastula Period |
 | blastula |
   | 128 cell (2,25 h) |
 | embryo |
  | deep blastomere |
| extraembryonic |
 | yolk |
| EVL blastomere |
 | 256 cell (2,5 h) |
| embryo |
| deep blastomere |
| extraembryonic |
| yolk |
| EVL blastomere |
 | 512 cell (2.75 h), midblastula transition |
| embryo |
| deep blastomere |
| extraembryonic |
| yolk |
| EVL blastomere |
 | 1K cell (3 h) |
| embryo |
| deep blastomere |
| extraembryonic |
| yolk |
| EVL |
| YSL |
 | high (3,3 h) |
| embryo |
| deep blastomere |
| extraembryonic |
| yolk |
| EVL |
| YSL |
| marginal blastomere? |
 | oblong (3,7 h) |
| embryo |
| superficial, deep blastomere |
| extraembryonic |
| yolk |
| EVL |
| I-ESL, E-YSL |
 | sphere (4 h) |
| embryo |
| superficial, deep blastomere |
| extraembryonic |
| yolk |
| EVL |
| I-ESL, E-YSL |
 | dome (4,3 h) |
| embryo |
| superficial, deep blastomere |
| extraembryonic |
| yolk |
| EVL |
| I-ESL, E-YSL |
 | 30, epiboly(4,7 h) |
| embryo, blastoderm |
| deep cell multilayer(DEL) |
| extraembryonic |
| yolk |
| EVL |
| I-ESL, E-YSL |
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