The Oaxacan Complex Carboniferous-Permian sedimentary cover in southern México records provenance shifts through time, reflecting the collision between Gondwana and Laurentia to amalgamate Pangea. integration of petrological analysis LA-ICP-MS U-Pb zircon geochronology from Santiago, Ixtaltepec Yododeñe formations compared with adjacent terranes suggests that: (1) during Early Mississippian, Sa...

Worm-like snakes (scolecophidians) are small, burrowing species with reduced vision. Although largely neglected in vertebrate research, knowledge of their biogeographical history is crucial for evaluating hypotheses of snake origins. We constructed a molecular dataset for scolecophidians with detailed sampling within the largest family, Typhlopidae (blindsnakes). Our results demonstrate that sc...

Systematic exploration of the continental lithosphere by deep seismic reflection profiling over the past 20 years has revolutionized our view of the deep crust and upper mantle. Major geological features have been traced to lower crustal depths. Certain deep crustal features have been traced into the underlying mantle (fossil subduction zones?). Some geotectonic boundaries, considered by genera...

A late Mesoproterozoic detrital zircon (DZ) age population, which was previously considered diagnostic of a link between the Lhasa terrane and northwest Australia, occurs in other Gondwanan components, thus obscuring paleogeographic position Gondwana. Here we compiled large-n (n ≥ 300) DZ U-Pb data from potential source regions various proposed reconstructions, attempted to synthesize spectra t...

A new locality of early Late Triassic age in the Richmond basin of east-central Virginia has yielded abundant remains of a diversified assemblage of small to medium-sized tetrapods that closely resembles Southern Hemisphere (Gondwanan) assemblages in the predominance of certain synapsids. Associated palynomorphs indicate an early middle Carnian age for the fossiliferous strata. The discovery su...

The northern Namibian Karoo-aged successions are part of a Gondwana-wide sedimentary system emerging at the Carboniferous–Permian boundary and existing for more than 50 Ma. Karoo Supergroup importance in understanding evolution rift system. This study presents new whole-rock geochemical data combined with detrital zircon morphology as well U−Pb ages Lu−Hf composition late Palaeozoic siliciclast...

Abstract The East African margin between the Somali Basin in north and Natal south formed as a result of Jurassic/Cretaceous dispersal Gondwana. While initial movements West Gondwana left (oblique) rifted margins behind, subsequent southward drift from 157 Ma onwards created major shear zone, Davie Fracture Zone (DFZ), along Africa. To document structural variability DFZ, several deep seismic l...