| Abbrev | Name | Spec | Type | Locality |
|---|---|---|---|---|
| Nb60 | NEBRASKA-60[1112] | |||
| Nbr | NEBRED[1112] | |||
| Nc | NEWCASTER[1112] | |||
| Ns | NEWSAR[1112] | |||
| Nth | NEWTHATCH[1112] | TR.AE | S | |
| Nt | NEWTURK[1112] | |||
| Ng | NIGGER[1112] | |||
| Ntn | NITTANY[1112] | |||
| Nd | NODAK[1112] | |||
| Nrn10 | NORIN-10[1112] | |||
| Nk | NORKA[1112] | |||
| Ndl | NUDEL[1112] | |||
| Ngt | NUGGET[1112] | |||
| Nr | NURED[1112] | |||
| Ol | OAKLEY[1112]1 | |||
| Od | ODESSA[1112] | |||
| Om | OMAHA[1112] | |||
| OZ,2 | OREGON-ZIMMERMAN[1112] | |||
| Of | ORFED[1112] | |||
| Or | ORIENTA[1112] |