Lusonectes
| Lusonectes | |
|---|---|
 | |
| Holotype partial skull and explanatory drawings | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Superorder: | †Sauropterygia |
| Order: | †Plesiosauria |
| Suborder: | †Pliosauroidea |
| Family: | †Pliosauridae |
| Genus: | †Lusonectes Smith, Araújo & Mateus, 2012 |
| Species: | †L. sauvagei |
| Binomial name | |
| †Lusonectes sauvagei Smith, Araújo & Mateus, 2012 | |
Lusonectes (meaning "Portuguese swimmer") is an extinct genus of Pliosauroid from the Early Jurassic (Toarcian) São Gião Formation of Coimbra District, Portugal. It is known from a single partial skull and mandible. Originally described as a plesiosaurid, later studies have proposed affinities with microcleidids or early pliosaurids, though its exact position remains uncertain due to the fragmentary nature of the material.