Results 11 to 20 of about 23,167 (204)

Large Igneous Province Record Through Time and Implications for Secular Environmental Changes and Geological Time‐Scale Boundaries

open access: yesGeophysical Monograph Series, Page 1-26., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst   +8 more
wiley  

+13 more sources

A new Early Devonian antiarch placoderm from Belarus, and the phylogeny of Asterolepidoidei [PDF]

open access: yesActa Palaeontologica Polonica, 2023
A new asterolepidoid antiarch, Sherbonaspis talimaae sp. nov., is described based on the disarticulated skeletal elements from several boreholes in Belarus, from the Lepel Beds of the Vitebsk Formation, which has been assigned to an Early Devonian, late ...
Dmitry P. Plax, Ervins Lukševičs
doaj   +1 more source

The Class Strophomenata (Brachiopoda) in Devonian deposits from the state of Paraná: a case study

open access: yesTerr@ Plural, 2022
The Strophomenata are extinct and presumably confined to the Paleozoic Rhynchonelliformea brachiopods. The class comprises the orders Strophomenida, Productida, Orthotetida, and Billingsellida.
Gabrieli Goltz   +3 more
doaj   +1 more source

Paleontological rescue, depositional environment, and stratigraphic correlation of a section of the Ponta Grossa Formation (Paraná Basin)

open access: yesTerr@ Plural, 2021
The urban area of Ponta Grossa (PR) occurs on one of the most abundant fossiliferous fields in the country, which records an endemic fauna that occurred in the Devonian of the Paraná Basin.
Elvio Pinto Bosetti   +6 more
doaj   +1 more source

Ichnological Research of Silurian–Devonian Strata and the Zoophycos Distribution in the Paraná Basin

open access: yesTerr@ Plural, 2021
The Silurian–Devonian strata of the Paraná Basin (southern Brazil) have a wide variety of ichnofossils. The first records date from the beginning of the last century, with pioneering studies in 1912 addressing the Furnas and Ponta Grossa formations ...
Kevin William Richter   +2 more
doaj   +1 more source

The role of conodonts in the global stratigraphic correlation on example of southern Siberia (Russia) and eastern Serbia [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2015
Conodonts are very precise tools for global stratigraphic correlation of Devonian deposits. They can be correlated at the level of standard conodont zones even for basins having very different geological structure.
Rodygin Sergei A.
doaj   +1 more source

Dolocretes in the uppermost Famennian to Mississippian siliciclastic deposits (Šķervelis Formation, Latvia) [PDF]

open access: yesEstonian Journal of Earth Sciences, 2023
Siliciclastic deposits and dolostones of the Å Ä·ervelis Formation in southwestern Latvia were studied in outcrops, polished slabs, thin sections, and by geochemical methods, including stable isotope analyses.
Daiga Pipira   +4 more
doaj   +1 more source

Upper Devonian (Famennian) conodonts from radiolarian cherts, Loei Terrane, Loei Province, Northeast Thailand [PDF]

open access: yesResearch & Knowledge, 2015
Conodonts from radiolarian cherts in the Loei Terrane of Loei Province, Northeast Thailand, include Palmatolepis triangularis, P. minuta minuta, P. minuta wolskae and polygnathids and indicate a Famennian crepida Zone age.
Clive Burrett   +2 more
doaj   +1 more source

Was the Devonian placoderm Titanichthys a suspension feeder? [PDF]

open access: yesRoyal Society Open Science, 2020
Large nektonic suspension feeders have evolved multiple times. The apparent trend among apex predators for some evolving into feeding on small zooplankton is of interest for understanding the associated shifts in anatomy and behaviour, while the spatial ...
Samuel J. Coatham   +3 more
doaj   +1 more source

Morphological disparity of early ammonoids: A geometric morphometric approach to investigate conch geometry

open access: yesActa Palaeontologica Polonica, 2023
Fossils of Devonian ammonoids are abundant and well-preserved in the Anti-Atlas of Morocco; as such they provide an invaluable record of regional morphological disparity changes (diversity of shapes) that characterise the first steps of ammonoid ...
NINON ALLAIRE   +6 more
doaj   +1 more source

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