Human
|
Mouse |
Chick
|
|||||
Carnegie Stage |
Approx. days post conception |
Mean size (mm) |
Theiler Stage |
Days post conception |
Size (mm) Crown-rump |
Hamilton Hamburger Stage |
Approx. days |
29 |
3.2 |
9 - 9.5 |
2.1 |
2 |
|||
30 |
3.9 |
9.5 - 10.25 |
2.5 |
2 - 2.5 |
|||
32 |
4.9 |
10.25 - 10.5 |
3.6 |
2.5 - 3 |
|||
34 |
6.5 |
10.5 |
4.1 |
3 - 3.5 |
|||
36 |
78 |
11 |
4.6 |
3.5 - 4 |
|||
38 |
9.6 |
11.5 |
6 - 7 |
4.5 - 5 |
|||
40 |
12.2 |
12 |
7 |
5 - 5.5 |
|||
43 |
14.9 |
12.5 - 13 |
8.2 |
5.5 - 6 |
|||
46 |
18.2 |
12.5 - 13 |
8.2 |
6 - 7 |
|||
49 |
20.7 |
13.5 - 14 |
9.1 |
7 - 7.5 |
|||
51 |
22.9 |
13.5 - 14 |
9.1 |
7.5 - 8 |
|||
53 |
25.5 |
13.5 - 14 |
9.1 |
8.5 - 9 |
|||
56 |
28.8 |
13.5 - 14 |
9.1 |
10
|
|||
17.5 - 18 |
17.8 |
||||||
Please note figures are approximations, as are the equivalences. Adapted from: O'Rahilly R and Müller F (2010). Developmental stages in human embryos: revised and new measurements. Cells Tissues Organs 192:73-84. Kaufman MH (1992). The Atlas of Mouse Development. Academic Press, London. Hill, M.A. (2023, November 10) Embryology Hamburger Hamilton Stages. Retrieved from
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