The Triassic is a key period in turtle evolution for three main reasons: First, the oldest fully shelled body-fossil records of the clade Testudinata come from Late Triassic (Norian) rocks. Second, tracks attributed ...

We describe fragmentary ichthyosaur skull remains of a single individual recovered from Lower Jurassic marine strata in northern Chile. The preserved teeth display distinctive features such as a very long, robust and ...

A long-standing debate regarding the configuration of Pangea during the Late Paleozoic has been going on among the paleomagnetic community concerning the validity of one of two significantly different Pangea reconstructions ...

Crocodylomorpha is a clade that has its origins during the Late Triassic and attained a global distribution early in their radiation. In this context, although limited to few geological units, the South American record has ...

Many of the controversies that arise in global reconstructions for Permian-Triassic time could be resolved by taking into account the large latitudinal and counter-clockwise movement of Gondwana during that interval of ...

The Corumbatai Formation is a Permian sedimentary unity comprising siltstones, claystones and very fine sandstones, deposited above calcific shales, bituminous shales and dolomitic limestones from the Irati Formation, ...

The Triassic Period was the setting for the origin and early diversification of Mesozoic ecosystems after the end-Permian mass extinction. The study of the Triassic is essential to understand the evolution of non-marine ...

Different authors have highlighted a systematic disagreement between Late Carboniferous-Triassic paleomagnetic poles (PPs) for Gondwanaland and Laurasia when they are repositioned in a classical reconstruction prior to the ...

The Andean orogenic cycle and its subduction-related magmatism along the southwestern margin of South America began during the early Jurassic after an accretionary history throughout Paleozoic times. The Chilean and ...