In Depth Makhaira is a genus of pliosaur that lived in waters that once submerged parts of Russia during the early Cretaceous. Due to lack of fossil material, little is known about the overall details of Makhaira. But these remains seem to have come from a small to medium sized pliosaur. The known teeth of … Read more
In Depth Originally described as a species of Plesiosaurus, this was the first pliosaur ever named which is why Pliosaurus is used as the type genus of the Pliosauridae. Related to the long necked plesiosaurs the pliosaurs adapted to fill a range of different predatory niches with some like Pliosaurus itself being hunters of other … Read more
In Depth Fossil remains of Stenorhynchosaurus were first discovered in 2000, and later excavation of the fossil site between 2004 and 2005 revealed an almost complete skeleton. Also in 2005, paleontologist Oliver Hempe came to the theory that this pliosaur possibly represented a species of the genus Brachauchenius. Later more detailed study however identified this … Read more
In Depth Brachauchenius was once regarded as one of the largest pliosaurs, and this was down to the addition of a skull measuring 170 centimetres in length to the genus. However, in 2013 this skull was used to establish a new genus called Megacephalosaurus. This in turn has led to a size revision for Brachauchenius, … Read more
In Depth Eardasaurus is a genus of pliosaur known to have lived around European waters during the Middle Jurassic. The skull of Eardasaurus displays some proportional features that are similar to the famous Liopleurodon, including a diastema where the premaxilla meets the maxilla. However the skull of Eardasaurus suggests that as many as thirty-four to … Read more
In Depth Originally described as a species of Kronosaurus, K. boyacensis, was re-described as a distinct genus Monquirasaurus, in 2021. Monquirasaurus was a large pliosaur that swam around in the waters around Central America during the early Cretaceous. Monquirasaurus would have easily been among the larger oceanic predators of this time and easily capable of … Read more
In Depth The genus name of Gallardosaurus is in honour of Juan Gallardo, the farmer who first discovered the remains in 1946. Despite the remains being discovered at this time, they were left unprepared for proper study, even in 1996 when Gallardosaurus was thought to possibly represent another specimen of Pliosaurus. When the remains were … Read more
In Depth The type specimen of Megacephalosaurus was originally assigned to the Brachauchenius genus, leading to the idea that Brachauchenius was one of the biggest of its time. The removal of this skull has led to a size revision of Brachauchenius, and the establishment of a new genus, Megacephalosaurus. However this still means that there … Read more
In Depth Acostasaurus is a genus of pliosaur that lived during the early Cretaceous period. Acostasaurus was a small to middle sized pliosaur that seems to have differed from brachauchenisine pliosaur that were otherwise common at the time and location. This could suggest that Acostasaurus had a different lifestyle/feeding preference to other larger pliosaurs. Further … Read more
In Depth Arminisaurus is a genus of pliosaurid plesiosaur that lived in Waters submerging what is now Germany during the early Jurassic. Arminisaurus is named after Arminius, a Germanic tribal chieftain who commanded the Germanic tribal alliance forces at the Battle of the Teutoburg Forest in which The Roman Empire suffered a major defeat. Further … Read more