Comparisons of Human and Mouse Development

Human
Mouse
Carnegie Stage
Post-ovulatory Days
Weeks post conception
Size (mm) Greatest Length
Theiler Stage
Days post conception

Size (mm) Crown-rump

11
24
4
2.5 - 4.5
9 - 9.5
2.1
26
4
3 - 5
9.5 - 10.25
2.5
28
4
4 - 6
10.25 - 10.5
3.6
32
5
5 - 7
10.5
4.1
33
5
7 - 9
11
4.6
37
6
8 - 11
11.5
6 - 7
41
6
11 - 14
12
7
44
7
13 - 17
12.5 - 13
8.2
47.5
7
16 - 18
12.5 - 13
8.2
50.5
8
18 - 22
13.5 - 14
9.1
52
8
22 - 24
13.5 - 14
9.1
54
8
23 - 28
13.5 - 14
9.1
56.5
8
27 - 31
13.5 - 14
9.1
17.5 - 18
17.8

 

(nb figures are approximations, as are the equivalences)

*Adapted from Kaufman MH (1992) The Atlas of Mouse Development. Academic Press, London.