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Comparisons of Human, Mouse and Chick Development

 
Human
Mouse
Chick
Carnegie Stage
Approx. days post conception

Mean size (mm)
Greatest length

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
 https://embryology.med.unsw.edu.au/embryology/index.php/Hamburger_Hamilton_Stages