| ORD | extinct order of jawless vertebrates |
|---|---|
| ORD | comprises a single genus: Andreaea |
| ORD | elongate fishes with pelvic fins and girdle absent or reduced |
| ORD | sucking lice |
| ORD | small aquatic crustaceans lacking a carapace: fairy shrimps |
| ORD | ducks |
| ORD | hornworts |
| ORD | frogs, toads, tree toads |
| ORD | includes chiefly saprophytic fungi typically with shelflike bodies |
| ORD | an order of Amphineura |
| ORD | elongate fishes with pelvic fins and girdle absent or reduced |
| ORD | swifts |