Results 1 to 10 of about 39,574 (242)

Morphological diversity of Quercus fossil pollen in the northern South China Sea during the last glacial maximum and its paleoclimatic implication. [PDF]

open access: yesPLoS ONE, 2018
We aimed to obtain high resolution vegetation data and climate information about the LGM in the inland of the northern SCS based on key pollen types. Dominant Quercus fossil pollen grains in the core from the continental shelf of the northern SCS have ...
Lu Dai, Qinghe Hao, Limi Mao
doaj   +2 more sources

Pollen identification through convolutional neural networks: First application on a full fossil pollen sequence. [PDF]

open access: yesPLoS ONE
The automation of pollen identification has seen vast improvements in the past years, with Convolutional Neural Networks coming out as the preferred tool to train models.
Médéric Durand   +5 more
doaj   +2 more sources

An Updated Review of Fossil Pollen Evidence for the Study of the Origin, Evolution and Diversification of Caribbean Mangroves [PDF]

open access: yesPlants, 2023
Recently, the evolutionary history of the Caribbean mangroves has been reconsidered using partial palynological databases organized by the time intervals of interest, namely Late Cretaceous to Eocene for the origin, the Eocene–Oligocene transition for ...
Valentí Rull
doaj   +2 more sources

Morphology and ultrastructure of Tilioideae pollen: how to differentiate Craigia, Mortoniodendron, and Tilia [PDF]

open access: yesBotanical Studies
Assigning fossil Tilioideae pollen grains to the extant genera Craigia, Mortoniodendron, and Tilia is difficult. Firstly, the pollen from these genera appears similar when studied only with light microscopy.
Christian Geier   +7 more
doaj   +2 more sources

A ready-to-use version of the Eurasian modern pollen database 2 (EMPD 2; Davis et al., 2020) for paleoclimatic reconstructionsPANGAEA [PDF]

open access: yesData in Brief
Pollen-based paleoclimatic reconstructions based on calibration or analogue techniques require large collections of modern pollen samples, which together contain a very high number of pollen taxa.
Jena Zumaque   +4 more
doaj   +2 more sources

Patterns in recent and Holocene pollen accumulation rates across Europe – the Pollen Monitoring Programme Database as a tool for vegetation reconstruction [PDF]

open access: yesBiogeosciences, 2021
The collection of modern, spatially extensive pollen data is important for the interpretation of fossil pollen assemblages and the reconstruction of past vegetation communities in space and time.
V. Abraham   +36 more
doaj   +1 more source

How to extract and analyze pollen from internal organs and exoskeletons of fossil insects?

open access: yesSTAR Protocols, 2021
Summary: This protocol explains how to extract pollen from fossil insects with subsequent descriptions of pollen treatment. We also describe how to document morphological and ultrastructural features with light-microscopy and electron microscopy.
Friðgeir Grímsson   +5 more
doaj   +1 more source

Palynological Study of Fossil Plants from Miocene Murree Formation of Pakistan: Clues to Investigate Palaeoclimate and Palaeoenvironment

open access: yesAgronomy, 2023
Palaeoflora in Pakistan in the Miocene is characterized by its high biodiversity. The present study investigated the pollen of fossil plants from the Murree Formation of Pakistan. Shales and mudstones were collected from the Murree section located at the
Shabir Ahmad   +10 more
doaj   +1 more source

Hagenia from the early Miocene of Ethiopia: Evidence for possible niche evolution?

open access: yesEcology and Evolution, 2021
Fossil pollen believed to be related to extant Hagenia abyssinica were discovered in the early Miocene (21.73 Ma) Mush Valley paleoflora, Ethiopia, Africa. Both the fossil and extant pollen grains of H.
Friðgeir Grímsson   +7 more
doaj   +1 more source

Fosil Polen Kayıtlarına Göre Orta-Geç Holosen’de Anadolu’da Arazi Kullanımı ve Vejetasyonda Meydana Gelen Değişimler

open access: yesCoğrafi Bilimler Dergisi, 2022
The most important data in determining palaeovegetation changes and palaeoland use characteristics are fossil pollen records and anthropogenic indicators included in these records.
Aziz Ören
doaj   +1 more source

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