44:
61:
110:
120:
85:
17:
115:
104:
89:
65:
48:
28:
This category has the following 3 subcategories, out of 3 total.
8:
18:Category:Jurassic synapsids of North America
45:Early Cretaceous synapsids of North America
62:Late Cretaceous synapsids of North America
111:Cretaceous tetrapods of North America
7:
121:Mesozoic synapsids of North America
86:Cretaceous mammals of North America
82:
58:
41:
30:
22:
14:
1:
137:
15:
16:See also the preceding
116:Cretaceous synapsids
128:
91:
84:
67:
60:
50:
43:
136:
135:
131:
130:
129:
127:
126:
125:
101:
100:
99:
98:
97:
96:
93:
92:
81:
72:
69:
68:
57:
52:
51:
40:
21:
20:
12:
11:
5:
134:
132:
124:
123:
118:
113:
103:
102:
95:
94:
80:
79:
76:
73:
71:
70:
56:
55:
53:
39:
38:
35:
32:
31:
26:
23:
13:
10:
9:
6:
4:
3:
2:
133:
122:
119:
117:
114:
112:
109:
108:
106:
87:
83:
78:
77:
74:
63:
59:
54:
46:
42:
37:
36:
33:
29:
25:Subcategories
24:
19:
27:
90:(2 C, 24 P)
105:Categories
49:(1 C, 1 P)
66:(1 C)
107::
88:
64:
47:
75:M
34:*
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