First appearing in the latest Cretaceous, Crocodylia is a clade of semi-aquatic, predatory
reptiles, defined by the last common ancestor of extant alligators, caimans, crocodiles, and …

A new species, Goniopholis kiplingi sp. nov., based on an exceptionally preserved skull from
the Lower Cretaceous of England is described in detail. It shows great similarity with …

INTRODUCTION Crocodilians and birds are the two extant clades of archosaurs, a group
that includes the extinct dinosaurs and pterosaurs. Fossils suggest that living crocodilians …

Archosaurs have a 250 million year record that originated shortly after the Permian-Triassic
extinction event and is continued today by two extant clades, the crocodylians and the …

Although simulations have shown that implied weighting (IW) outperforms equal weighting
(EW) in phylogenetic parsimony analyses, weighting against homoplasy lacks extensive …

Outgroup sampling is a central issue in phylogenetic analysis. However, good justification is
rarely given for outgroup selection in published analyses. Recent advances in our …

Among vertebrate gastrointestinal microbiome studies, complete representation of taxa is
limited, particularly among reptiles. Here, we provide evidence for previously unrecognized …

The defining masterwork on the evolution of reptiles. Over 300 million years ago, an early
land vertebrate developed an egg that contained the embryo in an amnion, allowing it to be …

We describe postcranial remains of new specimens referred to Sebecus icaeorhinus found
in the lower section of the Sarmiento Formation at Cañadón Hondo (central Patagonia …

Eusuchians with deep snouts and labiolingually compressed teeth are known from the
Palaeogene of Laurasia. These are usually referred to Pristichampsinae, but the type …