Kardiasperma
| Kardiasperma Temporal range: | |
|---|---|
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fagales |
| Family: | Betulaceae |
| Subfamily: | Coryloideae |
| Genus: | †Kardiasperma Manchester |
| Species: | †K. parvum |
| Binomial name | |
| †Kardiasperma parvum Manchester | |
Kardiasperma is an extinct genus of flowering plants in the hazelnut family, Betulaceae, containing the single species Kardiasperma parvum. The species is solely known from the middle Eocene sediments exposed in north central Oregon and was first described from a series of isolated fossil nuts in cherts.
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