Results 1 to 10 of about 339 (151)

Insolation-paced sea level and sediment flux during the early Pleistocene in Southeast Asia [PDF]

open access: yesScientific Reports, 2021
Global marine archives from the early Pleistocene indicate that glacial-interglacial cycles, and their corresponding sea-level cycles, have predominantly a periodicity of ~ 41 kyrs driven by Earth’s obliquity.
Romain Vaucher   +8 more
doaj   +2 more sources

Were the First Trace Fossils Really Burrows or Could They Have Been Made by Sediment-Displacive Chemosymbiotic Organisms? [PDF]

open access: yesLife, 2022
This review asks some hard questions about what the enigmatic graphoglyptid trace fossils are, documents some of their early fossil record from the Ediacaran–Cambrian transition and explores the idea that they may not have been fossils at all.
Duncan McIlroy
doaj   +2 more sources

Himatiichnus mangano igen. et isp. nov., a scalidophoran trace fossil from the late Ediacaran of Namibia [PDF]

open access: yesRoyal Society Open Science
Himatiichnus mangano igen. et isp. nov., a new trace fossil from the late Ediacaran Huns Member of the Urusis Formation, southern Namibia, comprises intertwining tubes exhibiting dual lineation patterns and reminiscent of both modern and early Cambrian ...
Katherine A. Turk   +4 more
doaj   +2 more sources

Stat-tracks and mediotypes: powerful tools for modern ichnology based on 3D models [PDF]

open access: yesPeerJ, 2018
Vertebrate tracks are subject to a wide distribution of morphological types. A single trackmaker may be associated with a range of tracks reflecting individual pedal anatomy and behavioural kinematics mediated through substrate properties which may vary ...
Matteo Belvedere   +5 more
doaj   +3 more sources

A remarkable assemblage of petroglyphs and dinosaur footprints in Northeast Brazil [PDF]

open access: yesScientific Reports
The Serrote do Letreiro Site, found on the northwest periphery of the Sousa Basin, Brazil, presents a remarkable convergence of paleontological and archaeological elements.
Leonardo P. Troiano   +3 more
doaj   +2 more sources

Inventory and Conservation of Triassic Vertebrate Tracks in the Monts d’Ardèche UNESCO Global Geopark, France [PDF]

open access: yesGeoconservation Research, 2021
The Regional Natural Park (RNP) of the Monts d'Ardèche, located in south-eastern France, became the Monts d’Ardèche UNESCO Global Geopark in September 2014.
Emmanuel Fara   +5 more
doaj   +1 more source

Author Correction: A remarkable assemblage of petroglyphs and dinosaur footprints in Northeast Brazil [PDF]

open access: yesScientific Reports
Leonardo P. Troiano   +3 more
doaj   +2 more sources

A Middle Permian Oasis for Vertebrate and Invertebrate Life in a High-Energy Fluvial Palaeoecosystem of Southern Gondwana (Karoo, Republic of South Africa)

open access: yesGeosciences, 2023
The Gansfontein palaeosurface (Fraserburg, Karoo, South Africa), which is correlated with the stratigraphic lowermost part of the continental Middle–Upper Permian Teekloof Formation, is revisited. This treasure trove of peculiar and exquisitely preserved
Ausonio Ronchi   +3 more
doaj   +1 more source

Broad distribution of spider-shaped lebensspuren along the Australian continental margin

open access: yesFrontiers in Marine Science, 2022
During feeding and burrowing, many epibenthic and infaunal animals bioturbate sediments and form a range of traces called lebensspuren (German for ‘life traces’), defined as any type of sedimentary structure produced by a living organism.
Rachel Przeslawski, Rachel Przeslawski
doaj   +1 more source

Geomorphological evidence of large vertebrates interacting with the seafloor at abyssal depths in a region designated for deep-sea mining [PDF]

open access: yesRoyal Society Open Science, 2018
Exploration licences for seafloor mineral deposits have been granted across large areas of the world's oceans, with the abyssal Pacific Ocean being the primary target for polymetallic nodules—a potentially valuable source of minerals.
Leigh Marsh   +2 more
doaj   +1 more source

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