Ainia is an extinct genus of prehistoric ray-finned fish that lived during the Kimmeridgian stage of the Late Jurassic epoch. It contains a single species, A. armata, known from the famous Solnhofen Limestone of Germany.[1][3] It is a distant relative of the bowfin, although it is more closely related to genera such as Caturus and Osteorachis.[4][5]
| Ainia Temporal range: | |
|---|---|
 | |
| Fossil specimen | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Clade: | Halecomorphi |
| Order: | †Ionoscopiformes |
| Genus: | †Ainia Jordan, 1919 |
| Species: | †A. armata |
| Binomial name | |
| †Ainia armata (Wagner, 1846 [originally Lepidotus]) | |
| Synonyms | |
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