Plastomeninae
| Plastomeninae Temporal range:  | |
|---|---|
| Plastomenus sp. | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Reptilia | 
| Order: | Testudines | 
| Suborder: | Cryptodira | 
| Family: | Trionychidae | 
| Subfamily: | †Plastomeninae Hay, 1902 | 
| Genera | |
| See text | |
Plastomeninae is an extinct subfamily of softshell turtles that inhabited most of North America from the Cretaceous to the Eocene. Members of this subfamily are also known as plastomenines.