Search
Search Results
-
A new Gondwanan mayfly family from the Lower Cretaceous Crato Formation, Brazil (Ephemeroptera: Siphlonuroidea: Astraeopteridae fam. nov.)
The adult holotype of the fossil mayfly Astraeoptera cretacica Brandão et al. 2021 from the Cretaceous Crato Formation, Brazil, is reviewed and...
-
Experimental and digital investigations of heterogeneity in lower cretaceous carbonate reservoir using fractal and multifractal concepts
Characterization and prediction of reservoir heterogeneity are crucial for hydrocarbon production. This study applies the multifractal theory using...
-
New theropod dinosaur from the Lower Cretaceous of Japan provides critical implications for the early evolution of ornithomimosaurs
Ornithomimosauria consists of the ostrich-mimic dinosaurs, most of which showing cursorial adaptations, that often exhibit features indicative of...
-
Middle ear innovation in Early Cretaceous eutherian mammals
The middle ear ossicles in modern mammals are repurposed from postdentary bones in non-mammalian cynodonts. Recent discoveries by palaeontological...
-
The oldest fossil record of Pseudopsinae from the Lower Cretaceous Yixian Formation of northeastern China (Coleoptera: Staphylinidae: Pseudopsinae)
The Cretaceous witnessed a radiation of rove beetles (Staphylinidae), the most species-rich beetle family. Although most staphylinid subfamilies have...
-
Early Cretaceous lepidosaur (sphenodontian?) burrows
Scarce fossil tetrapod burrows have been recorded in Cretaceous rocks, which is probably linked to the dominant equable climates that existed for...
-
Permafrost in the Cretaceous supergreenhouse
Earth’s climate during the last 4.6 billion years has changed repeatedly between cold (icehouse) and warm (greenhouse) conditions. The hottest...
-
Late Cretaceous ammonoids show that drivers of diversification are regionally heterogeneous
Palaeontologists have long sought to explain the diversification of individual clades to whole biotas at global scales. Advances in our understanding...
-
A large therian mammal from the Late Cretaceous of South America
Theria represent an extant clade that comprises placental and marsupial mammals. Here we report on the discovery of a new Late Cretaceous mammal from...
-
Petrographical and petrophysical rock typing for flow unit identification and permeability prediction in lower cretaceous reservoir AEB_IIIG, Western Desert, Egypt
The primary objective of this study is to identify and analyze the petrophysical properties of the newly investigated AEB_IIIG member reservoir in...
-
Intra-gastric phytoliths provide evidence for folivory in basal avialans of the Early Cretaceous Jehol Biota
Angiosperms became the dominant plant group in early to middle Cretaceous terrestrial ecosystems, coincident with the timing of the earliest pulse of...
-
Completing the loop of the Late Jurassic–Early Cretaceous true polar wander event
The reorientation of Earth through rotation of its solid shell relative to its spin axis is known as True polar wander (TPW). It is well-documented...
-
Hot Cordilleran hinterland promoted lower crust mobility and decoupling of Laramide deformation
The Late Cretaceous to Paleogene Laramide orogen in the North American Cordillera involved deformation >1,000 km from the plate margin that has been...
-
Cretaceous to early Paleogene sediment provenance transition from continental to magmatic arc systems in the Northwestern Pacific Region
Unraveling the Paleo-Kuril Arc's origins is key to understanding northwest Pacific tectonics. The Paleo-Kuril Arc is viewed as an intraoceanic arc...
-
A new spinosaurid dinosaur species from the Early Cretaceous of Cinctorres (Spain)
A new spinosaurid genus and species is described based on the right maxilla and five caudal vertebrae of a single specimen from the Arcillas de...
-
Fine-grained interplanetary dust input during the Turonian (Late Cretaceous): evidence from osmium isotope and platinum group elements
The Turonian age (~ 90–94 Ma) was the hottest geological interval in the Cretaceous and also marked by the K3 event, a pronounced enrichment of 3 He...
-
Organic walled microfossils in wet peperites from the early Cretaceous Paraná-Etendeka volcanism of Brazil
Large igneous provinces (LIPs) are major magmatic events that have a significant impact on the global environment and the biosphere, for example as...
-
Effects of paleogeographic changes and CO2 variability on northern mid-latitudinal temperature gradients in the Cretaceous
The Cretaceous ‘greenhouse’ period (~145 to ~66 million years ago, Ma) in Earth’s history is relatively well documented by multiple paleoproxy...
-
A putatively extinct higher taxon of Spirotrichea (Ciliophora) from the Lower Cretaceous of Brazil
Fossil microeukaryotes are key elements for understanding ancient ecosystems at microscopic level and improving the knowledge on the diversification...
