75:
17:
40:
70:
65:
59:
44:
18:
Category:Early
Cretaceous synapsids of North America
28:This category has only the following subcategory.
8:
76:Late Cretaceous vertebrates of North America
41:Late Cretaceous mammals of North America
71:Cretaceous synapsids of North America
7:
30:
22:
14:
1:
92:
15:
66:Late Cretaceous synapsids
16:See also the preceding
83:
46:
91:
90:
86:
85:
84:
82:
81:
80:
56:
55:
54:
53:
52:
51:
48:
47:
21:
20:
12:
11:
5:
89:
87:
79:
78:
73:
68:
58:
57:
50:
49:
39:
38:
35:
32:
31:
26:
23:
13:
10:
9:
6:
4:
3:
2:
88:
77:
74:
72:
69:
67:
64:
63:
61:
42:
37:
36:
33:
29:
25:Subcategories
24:
19:
27:
60:Categories
45:(17 P)
62::
43:
34:L
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