| Alnus heterodonta Temporal range:
| |
|---|---|
| |
| Reconstruction of Alnus heterodonta | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fagales |
| Family: | Betulaceae |
| Genus: | Alnus |
| Species: | †A. heterodonta
|
| Binomial name | |
| †Alnus heterodonta (Newberry) Meyer & Manchester
| |
Alnus heterodonta is an extinct species of alder from the early Oligocene Bridge Creek floras of Central Oregon[1]