|Named By:||Richard Owen in 1884|
|Time Period:||Late Jurassic, 154-149 Ma|
|Location:||England - Kimmeridge Clay Formation. Possibly also Spain - Terenes Formation|
|Size:||Holotype estimated to be about 5.42 meters long. A second larger individual has been estimated to be about 6.83 meters long|
|Fossil(s):||Partial skull and postcranial remains of at least two individuals|
|Classification:||| Chordata | Reptilia | Crocodylomorpha | Thalattosuchia | Metriorhynchidae | Geosaurini ||
|Also known as:||| Steneosaurus manselii ||
Plesiosuchus is an extinct genus of geosaurine metriorhynchid crocodyliform known from the Late Jurassic (late Kimmeridgian to early Tithonian stage) of Dorset, England and possibly also Spain. It contains a single species, Plesiosuchus manselii.