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Home Education Embryo Staging Series

Axolotl Embryo Staging Series

G.M. Schreckenberg and A.G. Jacobson, Normal Stages of Development of the Axolotl, Ambystoma mexicanum. Devel. Biol. 42:391-400. (1975).

Preblastula (1-7)
Blastula & Gastrula (8-12.5)
Neurula (13-20)
Early Tailbud (21-25)
Middle Tailbud (26-30)
Late Tailbud (31-35)
Prehatch to Hatched (36-44)

Preblastula - Stages 1-7:

Bordzilovskaya, N.P., T.A. Dettlaff, Susan T. Duhon, and George M. Malacinski. 1989. Developmental-stage series of axolotl embryos. In Developmental Biology of the Axolotl edited by J.B. Armstrong and G.M. Malacinski. Oxford University Press, New York, pp. 201-219.

The Bordzilovskaya and Dettlaff staging series is also available in Axolotl Newsletter #7 (Spring, 1979).

Click on the buttons (72 dpi GIF images) below to view the larger images (150 dpi JPEG) of each stage.


1. Fertilized egg in membranes

1. Animal pole

2. Two cells

3. Four cells

3. Eight cells

5. Sixteen cells, side view

5. Sixteen cells, animal pole

6. Thirty-two cells

7. Sixty-four cells

Blastula & Gastrula - Stages 8-12.5:

Bordzilovskaya, N.P., T.A. Dettlaff, Susan T. Duhon, and George M. Malacinski. 1989. Developmental-stage series of axolotl embryos. In Developmental Biology of the Axolotl edited by J.B. Armstrong and G.M. Malacinski. Oxford University Press, New York, pp. 201-219.

The Bordzilovskaya and Dettlaff staging series is also available in Axolotl Newsletter #7 (Spring, 1979).

Click on the buttons (72 dpi GIF images) below to view the larger images (150 dpi JPEG) of each stage.


8. Early blastula

9. Late blastula

10. Early gastrula I,
vegetal hemisphere

10.5.Early gastrula II

10.75. Middle gastrula I

11. Middle gastrula II

11.5. Late gastrula I

12. Late gastrula II

12.5. Late gastrula III

Neurula - Stages 13-20:

Bordzilovskaya, N.P., T.A. Dettlaff, Susan T. Duhon, and George M. Malacinski. 1989. Developmental-stage series of axolotl embryos. In Developmental Biology of the Axolotl edited by J.B. Armstrong and G.M. Malacinski. Oxford University Press, New York, pp. 201-219.

The Bordzilovskaya and Dettlaff staging series is also available in Axolotl Newsletter #7 (Spring, 1979).

Click on the buttons (72 dpi GIF images) below to view the larger images (150 dpi JPEG) of each stage.


13. Early neurula I,
vegetal hemisphere

13. Early neurula I,
side view

14. Early neurula II

15. Early neurula III

16. Middle neurula II

17. Late neurula I

18. Late neurula II

19. Late neurula III

20. Late neurula IV

Early Tailbud - Stages 21-25:

Bordzilovskaya, N.P., T.A. Dettlaff, Susan T. Duhon, and George M. Malacinski. 1989. Developmental-stage series of axolotl embryos. In Developmental Biology of the Axolotl edited by J.B. Armstrong and G.M. Malacinski. Oxford University Press, New York, pp. 201-219.

The Bordzilovskaya and Dettlaff staging series is also available in Axolotl Newsletter #7 (Spring, 1979).

Click on the buttons (72 dpi GIF images) below to view the larger images (150 dpi JPEG) of each stage.


21.

22.

23.

24.

25.

Middle Tailbud - Stages 26-30:

Bordzilovskaya, N.P., T.A. Dettlaff, Susan T. Duhon, and George M. Malacinski. 1989. Developmental-stage series of axolotl embryos. In Developmental Biology of the Axolotl edited by J.B. Armstrong and G.M. Malacinski. Oxford University Press, New York, pp. 201-219.

The Bordzilovskaya and Dettlaff staging series is also available in Axolotl Newsletter #7 (Spring, 1979).

Click on the buttons (72 dpi GIF images) below to view the larger images (150 dpi JPEG) of each stage.


26.

27.

28.

29.

30.

Late Tailbud - Stages 31-35:

Bordzilovskaya, N.P., T.A. Dettlaff, Susan T. Duhon, and George M. Malacinski. 1989. Developmental-stage series of axolotl embryos. In Developmental Biology of the Axolotl edited by J.B. Armstrong and G.M. Malacinski. Oxford University Press, New York, pp. 201-219.

The Bordzilovskaya and Dettlaff staging series is also available in Axolotl Newsletter #7 (Spring, 1979).

Click on the buttons (72 dpi GIF images) below to view the larger images (150 dpi JPEG) of each stage.


31.

32.

33.

34.

35.

Prehatched to Hatched - Stages 36-44:

Bordzilovskaya, N.P., T.A. Dettlaff, Susan T. Duhon, and George M. Malacinski. 1989. Developmental-stage series of axolotl embryos. In Developmental Biology of the Axolotl edited by J.B. Armstrong and G.M. Malacinski. Oxford University Press, New York, pp. 201-219.

The Bordzilovskaya and Dettlaff staging series is also available in Axolotl Newsletter #7 (Spring, 1979).

Click on the buttons (72 dpi GIF images) below to view the larger images (150 dpi JPEG) of each stage.


36.

37.

38.

39.

40.

41.

42.

43.

44.Just hatched
 

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