| Callistosiren Temporal range: late Oligocene | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Sirenia |
| Family: | Dugongidae |
| Subfamily: | Dugonginae |
| Genus: | † Callistosiren Velez-Juarbe and Domning, 2015 |
| Species | |
| |
Callistosiren is an extinct genus of mammal which existed in what is now Puerto Rico during the late Oligocene (Chattian). [1]
The Sirenia, commonly referred to as sea cows or sirenians, are an order of fully aquatic, herbivorous mammals that inhabit swamps, rivers, estuaries, marine wetlands, and coastal marine waters. The extant Sirenia comprise two distinct families: Dugongidae and Trichechidae with a total of four species. The Protosirenidae and Prorastomidae families are extinct. Sirenians are classified in the clade Paenungulata, alongside the elephants and the hyraxes, and evolved in the Eocene 50 million years ago (mya). The Dugongidae diverged from the Trichechidae in the late Eocene or early Oligocene.
Dugongidae is a family in the order of Sirenia. The family has one surviving species, the dugong, one recently extinct species, Steller's sea cow, and a number of extinct genera known from fossil records.
The Lares Limestone is a geologic formation in Puerto Rico. It preserves fossils dating back to the Late Oligocene to Early Miocene period.
This paleomammalogy list records new fossil mammal taxa that were described during the year 2015, as well as notes other significant paleomammalogy discoveries and events which occurred during that year.
Sirenian genera | ||
|---|---|---|
| ||
 | ||
 | This article about prehistoric Afrotheria is a stub. You can help Wikipedia by expanding it. |