Results 21 to 30 of about 47,466 (273)

Biostratigraphy and palaeoecology of marine microphytoplankton cysts from Member 4 of the Mila Formation, Mila Kuh, eastern Alborz [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2019
Well preserved and diverse organic-walled marine microphytoplankton cysts (acritarchs sensu lato) occur in Member 4 (comprising mostly of fine-grained clastics with thin carbonate intercalations) of the Mila Formation at the type section, southwestern ...
Navid Navidi-Izad, Hossein Hashemi
doaj   +1 more source

Stromatoporoids from a Middle Devonian reef in South China and their palaeoecological implication [PDF]

open access: yesActa Palaeontologica Polonica, 2022
Stromatoporoids are the major constructors of a Givetian (Middle Devonian) fossil reef in shallow marine facies, in the Jiwozhai Member of the Dushan Formation, at Dahekou, near Dushan, Guizhou Province, South China.
JIAYUAN HUANG   +6 more
doaj   +1 more source

An Assessment of Soil Phytolith Analysis as a Palaeoecological Tool for Identifying Pre-Columbian Land Use in Amazonian Rainforests

open access: yesQuaternary, 2023
Phytolith analysis is a well-established archaeobotanical tool, having provided important insights into pre-Columbian crop cultivation and domestication across Amazonia through the Holocene.
James Hill   +15 more
doaj   +1 more source

Severe Plane-Form Enamel Hypoplasia in a Dentition from Roman Britain

open access: yesDental Anthropology, 2017
Enamel defects can provide insight into the life histories of past individuals and populations, including information on a wide range of disturbances during childhood.
Ian Towle   +3 more
doaj   +1 more source

Eastern Beringia and beyond: Late Wisconsinan and Holocene landscape dynamics along the Yukon Coastal Plain, Canada [PDF]

open access: yes, 2012
Terrestrial permafrost archives along the Yukon Coastal Plain (northwest Canada) have recorded landscape development and environmental change since the Late Wisconsinan at the interface of unglaciated Beringia (i.e.
Fritz, Michael   +6 more
core   +1 more source

Assessing Open Science Practices in Phytolith Research

open access: yesOpen Quaternary, 2022
Open science is an integral part of all scientific research, but the extent of open science practices in phytolith research is unknown. Phytolith analysis examines silica bodies that are initially formed within and between plant cells during the life of ...
Emma Karoune
doaj   +1 more source

Functional diversity of marine ecosystems after the Late Permian mass extinction event [PDF]

open access: yes, 2014
Article can be accessed from http://www.nature.com/ngeo/journal/v7/n3/full/ngeo2079.htmlThe Late Permian mass extinction event was the most severe such crisis of the past 500 million years and occurred during an episode of global warming.
A Baud   +49 more
core   +1 more source

A Review of the Taxonomy and Palaeoecology of the Anurognathidae (Reptilia, Pterosauria)

open access: yesActa Geologica Sinica - English Edition, 2020
The anurognathids are an enigmatic and distinctive clade of small, non‐pterodactyloid pterosaurs with an unusual combination of anatomical traits in the head, neck, wings and tail.
D. Hone
semanticscholar   +1 more source

A record of fossil shallow-water whale falls from Italy [PDF]

open access: yes, 2014
Twenty-five Neogene-Quaternary whales hosted in Italian museum collections and their associated fauna were analysed for evidence of whale-fall community development in shallow-water settings.
Allison   +81 more
core   +2 more sources

Platinum Group Element Traces of CAMP Volcanism Associated With Low‐Latitude Environmental and Biological Disruptions

open access: yesGeophysical Monograph Series, Page 263-304., 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.
Jessica H. Whiteside   +3 more
wiley  

+1 more source

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