Anurans, along with urodeles and caecilians are the extant representatives of the clade
Lissamphibia. Nowadays, lissamphibians are widely distributed in all continents, except …

In the dusk of the Mesozoic, advanced duck-billed dinosaurs (Hadrosauridae) were so
successful that they likely outcompeted other herbivores, contributing to declines in dinosaur …

The end Cretaceous mass extinction was marked by a dramatic change in biodiversity, and
the extinction of all non-avian dinosaurs. To understand the diversity of dinosaur clades prior …

Abstract The Cerro Fortaleza Formation is a stratigraphic unit that crops out near the Cerro
Fortaleza hill, northwestern Santa Cruz province, Argentina. This unit has been well-known …

Anurans are one of the most diverse vertebrate groups, particularly in Amazonia, where
species richness exceeds that of anywhere else. Amazonian frogs belong to three main …

We describe the new frog Telmatobius achachila sp. nov. from the late Middle to earliest
Late Miocene of Achiri, based on a partial skeleton found at 3960 m above sealevel in the …

In the present paper, we report new anuran remains recovered from strata referred to the
Adamantina Formation (Upper Cretaceous) cropping out near Catanduva city, São Paulo …

Sphenodontids are a group of reptiles that were diverse and global for much of the Mesozoic
but today they are only represented by the New Zealand tuatara. Here we describe new …

Abstract The Adamantina Formation is the most extensive and taxonomically rich unit within
the Bauru Group (Upper Cretaceous). This unit is considered one of the most complete fossil …

Calyptocephalella is nowadays only represented by the emblematic Chilean Helmeted
Water Toad C. gayi, restricted to water bodies of Central Chile. Numerous fossil remains …