Results 1 to 10 of about 25,557 (227)

Late Eocene–early Miocene evolution of the southern Australian subtropical front: a marine palynological approach [PDF]

open access: yesJournal of Micropalaeontology, 2021
Improvements in our capability to reconstruct ancient surface-ocean conditions based on organic-walled dinoflagellate cyst (dinocyst) assemblages from the Southern Ocean provide an opportunity to better establish past position, strength and oceanography ...
F. S. Hoem   +6 more
doaj   +1 more source

Research Progress on Forensic Palynology and Its Application in Forensic Science [PDF]

open access: yesFayixue Zazhi, 2020
Forensic palynology is to apply palynology to the field of forensic science, using pollen and spores to solve issues in juridical practice, such as civil and criminal issues.
CHEN Yun-xia, SHI Hong-fei
doaj   +1 more source

Understanding perspectives of current palynology: using science with practical discourse

open access: yesBotan‪ical Sciences, 2023
Background: Palynological studies have contributed with topics closely linked to sustainability. However, there are still few scientific reviews that have discussed the relevance of practical applications in current palynology and its perspectives as a ...
Tonatiuh Jiménez-Zamora   +4 more
doaj   +1 more source

Hiddenocysta matsuokae gen. nov. et sp. nov. from the Holocene of Vancouver Island, British Columbia, Canada [PDF]

open access: yes, 2021
A new dinoflagellate cyst genus and species are described here as Hiddenocysta gen. nov. and Hiddenocysta matsuokae sp. nov. from Holocene sediments in a core from the west coast of Vancouver Island (British Columbia, Canada).
Bogus, Kara   +5 more
core   +2 more sources

Paleoceanography and ice sheet variability offshore Wilkes Land, Antarctica – Part 3: Insights from Oligocene–Miocene TEX86-based sea surface temperature reconstructions [PDF]

open access: yesClimate of the Past, 2018
The volume of the Antarctic continental ice sheet(s) varied substantially during the Oligocene and Miocene ( ∼ 34–5 Ma) from smaller to substantially larger than today, both on million-year and on orbital timescales.
J. D. Hartman   +9 more
doaj   +1 more source

Better molecular preservation of organic matter in an oxic than in a sulfidic depositional environment: evidence from Thalassiphora pelagica (Dinoflagellata, Eocene) cysts [PDF]

open access: yesBiogeosciences, 2020
Anoxic sediments, as compared to oxic settings, encompass a much higher proportion of relatively labile and thus more reactive organic matter, naturally giving rise to structural changes of the organic molecules themselves, as well as cross-linking ...
G. J. M. Versteegh   +4 more
doaj   +1 more source

Islandinium pacificum sp. nov., a new dinoflagellate cyst from the upper Quaternary of the northeast Pacific [PDF]

open access: yes, 2020
Round brown process-bearing cysts (RBPC) produced by dinoflagellates (Dinophyceae) occur as an important part of assemblage diversities in seafloor sediments worldwide. Here a new species, Islandinium pacificum, is described from surface sediment samples
Gurdebeke, Pieter   +4 more
core   +2 more sources

Palynological response deduced through spatially distinct surface samples to reconstruct palaeoecology and palaeoclimate of the Barak Valley, Assam (Indo-Burma region), northeast India

open access: yesJournal of the Palaeontological Society of India, 2023
Establishing modern pollen analogues under various vegetation types in a location is necessary without which it is difficult to accurately interpret fossil pollen assemblages in any region in terms of the past environment and palaeoclimate.
Swati Tripathi, Arya Pandey
doaj   +1 more source

Equatorward phytoplankton migration during a cold spell within the Late Cretaceous super-greenhouse [PDF]

open access: yesBiogeosciences, 2016
Oceanic Anoxic Event 2 (OAE2), a  ∼  600 kyr episode close to the Cenomanian–Turonian boundary (ca. 94 Ma), is characterized by relatively widespread marine anoxia and ranks amongst the warmest intervals of the Phanerozoic.
N. A. G. M. van Helmond   +10 more
doaj   +1 more source

Ecological response to collapse of the biological pump following the mass extinction at the Cretaceous–Paleogene boundary [PDF]

open access: yesBiogeosciences, 2017
It is commonly accepted that the mass extinction associated with the Cretaceous–Paleogene (K–Pg) boundary (∼ 66 Ma) is related to the environmental effects of a large extraterrestrial impact.
J. Vellekoop   +7 more
doaj   +1 more source

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