Results 21 to 30 of about 339 (151)

Storm‐flood‐dominated delta succession in the Pleistocene Taiwan Strait

The Depositional Record, 2023
Storm‐flood‐dominated deltas are sedimentary systems in which a complex interplay of hydrodynamic processes occurs during storms (e.g. tropical cyclones) due to the coeval action of continental and oceanic processes.
Romain Vaucher, Antoine Dillinger, Amy I. Hsieh, Wen‐Rong Chi, Ludvig Löwemark, Shahin E. Dashtgard   +5 more
doaj   +1 more source

Pterosaur Tracks from the Upper Cretaceous Anacleto Formation (Neuquén Basin), Northern Patagonia, Argentina: Insights into Campanian Pterosaur Diversity in Gondwana

Diversity, 2022
The Campanian Anacleto Formation holds an abundant and diverse ichnofossil and body-fossil vertebrate record. Despite the striking diversity of this record, pterosaur fossils had never been described from the unit.
Ignacio Díaz-Martínez, Arturo M. Heredia, Santiago N. González, Nerina Canale, Silvina de Valais, Carlos A. Cónsole-Gonella, Romina M. Montes, Martina Caratelli, Sofía Urzagasti-Torres, Geraldine Fischer, Agustina Lecuona, Pablo Paniceres, Leonardo Salgado, Paolo Citton   +13 more
doaj   +1 more source

Ghosts of the Holobiont: Borings on a Miocene Turtle Carapace from the Pisco Formation (Peru) as Witnesses of Ancient Symbiosis

Journal of Marine Science and Engineering, 2022
In spite of the widespread occurrence of epibiotic turtle barnacles (Coronuloidea: Chelonibiidae and Platylepadidae) on extant marine turtles (Chelonioidea: Cheloniidae and Dermochelyidae), and although the association between these cirripedes and their ...
Alberto Collareta, Rafael Varas-Malca, Giulia Bosio, Mario Urbina, Giovanni Coletti   +4 more
doaj   +1 more source

Depression chains in seafloor of contrasting morphology, Atacama Trench margin: a comment on Marsh et al. (2018) [PDF]

Royal Society Open Science, 2019
This comment presents acoustic and visual data showing deep seafloor depression chains similar to those reported in Marsh et al. (R. Soc. open sci. 5: 180286), though from a different deep-sea setting. Marsh et al.
Autun Purser, Helena Herr, Simon Dreutter, Boris Dorschel, Ronnie N. Glud, Laura Hehemann, Ulrich Hoge, Alan J. Jamieson, Thomas D. Linley, Heather A. Stewart, Frank Wenzhöfer   +10 more
doaj   +1 more source

The Jurassic of Denmark and Greenland: Sedimentology and sequence stratigraphy of paralic and shallow marine Upper Jurassic sandstones in the northern Danish Central Graben [PDF]

Geological Survey of Denmark and Greenland Bulletin, 2003
Paralic and shallow marine sandstones were deposited in the Danish Central Graben during Late Jurassic rifting when half-grabens were developed and the overall eustatic sea level rose.
Johannessen, Peter N.
doaj  

Ichnofossils, Cracks or Crystals? A Test for Biogenicity of Stick-Like Structures from Vera Rubin Ridge, Mars

Geosciences, 2020
New images from Mars rover Curiosity display millimetric, elongate stick- like structures in the fluvio-lacustrine deposits of Vera Rubin Ridge, the depositional environment of which has been previously acknowledged as habitable.
Andrea Baucon, Carlos Neto De Carvalho, Fabrizio Felletti, Roberto Cabella   +3 more
doaj   +1 more source

Detrital Zircon Provenance and Lithofacies Associations of Montmorillonitic Sands in the Maastrichtian Ripley Formation: Implications for Mississippi Embayment Paleodrainage Patterns and Paleogeography

Geosciences, 2020
We provide new detrital zircon evidence to support a Maastrichtian age for the establishment of the present-day Mississippi River drainage system. Fieldwork conducted in Pontotoc County, Mississippi, targeted two sites containing montmorillonitic sand in
Jennifer N. Gifford, Elizabeth J. Vitale, Brian F. Platt, David H. Malone, Inoka H. Widanagamage   +4 more
doaj   +1 more source

Lower Eocene Footprints from Northwest Washington, USA. Part 1: Reptile Tracks

Geosciences, 2019
Lower Eocene fluvial strata in the Chuckanut Formation preserve abundant bird and mammal tracks. Reptile trace fossils include footprints from a small turtle (ichnogenus Chelonipus), and several Crocodylian trackways that consist of irregularly spaced ...
George E. Mustoe
doaj   +1 more source

La grotte de Cussac (Dordogne)

Les Nouvelles de l’Archéologie, 2019
The recently discovered (2000) Cussac Cave is one of the major elaborately decorated caves for which the Ministry of Culture immediately invoked protective measures, including climatic controls and land and equipment purchases.
Jacques Jaubert, Catherine Ferrier, Valérie Feruglio, Nathalie Fourment, Camille Bourdier, Stéphane Konik, Sébastien Villotte   +6 more
doaj   +1 more source

Inside a duck‐billed dinosaur: Vertebral bone microstructure of Huallasaurus (Hadrosauridae), Upper Cretaceous of Patagonia

The Anatomical Record, EarlyView.
Abstract Dinosaurs evolved a unique respiratory system with air sacs that contributed to their evolutionary success. Postcranial skeletal pneumaticity (PSP) has been used to infer the presence of air sac systems in some fossil archosaurs. While unambiguous evidence of PSP is well documented in pterosaurs and post‐Carnian saurischians, it remains absent
Tito Aureliano, Aline M. Ghilardi, Jonatan Kaluza, Agustín G. Martinelli   +3 more
wiley   +1 more source