| Abbrev | Name | Spec | Type | Locality |
|---|---|---|---|---|
| BUR7 | BUR-7[1281]; | TR.DR | S | MEX |
| BUR8 | BUR-8[1281]; | TR.DR | S | MEX |
| BUR9 | BUR-9[1281]; | TR.DR | S | MEX |
| BSTINK | BUREVESTINK[1281]; | TR.DR | S | MEX |
| BUR | BURHINUS[1281]; | TR.DR | S | MEX |
| BUSHEN | BUSHHEN[1281]; | TR.DR | S | MEX |
| BUST1 | BUST-1[1281]; | TR.DR | S | MEX |
| BUST2 | BUST-2[1281]; | TR.DR | S | MEX |
| BUST3 | BUST-3[1281]; | TR.DR | S | MEX |
| BUST4 | BUST-4[1281]; | TR.DR | S | MEX |
| BUST | BUSTARD[1281]; | TR.DR | S | MEX |
| BBLR | BUTLER[1281]; | TR.AE | USA | |
| BUTO1 | BUTORIDES-1[1281]; | TR.DR | S | MEX |
| BUTO2 | BUTORIDES-2[1281]; | TR.DR | S | MEX |
| BUTO3 | BUTORIDES-3[1281]; | TR.DR | S | MEX |
| BUTO4 | BUTORIDES-4[1281]; | TR.DR | S | MEX |
| Ro | RAMONA[1112] | |||
| BUTO5 | BUTORIDES-5[1281]; | TR.DR | S | MEX |
| BUTO6 | BUTORIDES-6[1281]; | TR.DR | S | MEX |
| BUTO7 | BUTORIDES-7[1281]; | TR.DR | S | MEX |