Marine and terrestrial animals show a mosaic of lineage extinctions and diversifications
during the J urassic–C retaceous transition. However, despite its potential importance in …

Previous attempts to resolve plesiosaurian phylogeny are reviewed and a new phylogenetic
data set of 66 taxa (67% of ingroup taxa examined directly) and 178 characters (eight new) …

The dicynodont wastebasket genus Dicynodon is revised following a comprehensive review
of nominal species. Most nominal species of Dicynodon pertain to other well-known …

Invasion of the open ocean by tetrapods represents a major evolutionary transition that
occurred independently in cetaceans, mosasauroids, chelonioids (sea turtles), ichthyosaurs …

The holotype of Brancasaurus brancai is one of the most historically famous and
anatomically complete Early Cretaceous plesiosaurian fossils. It derived from the …

Two extremely-long necked elasmosaurids, AMNH 1495, holotype of Hydralmosaurus
serpentinus, and AMNH 5835, previously referred to H. serpentinus, are here reviewed in …

Plesiosauria is a diverse clade of marine reptiles that have been studied since the early 19th
century. However, phylogenetic relationships within the group have been contentious due to …

Among the most enigmatic and controversial plesiosaurian clades is the Early Cretaceous
Leptocleididae, a small group of (mostly) short-necked taxa with 'intermediate'or …

Underwater locomotion by plesiosaurs has long been a controversial problem with many
hypotheses suggested. Almost without exception these models were based on limited …

The exquisitely preserved holotype of the pliosaur 'Rhomaleosaurus' victor (SMNS 12478) is
described from the Toarcian Posidonien‐Schiefer (Upper Lias, Lower Jurassic) of …