Results 21 to 30 of about 30,339 (229)

The Upper Oligocene of Montgat (Catalan Coastal Ranges, Spain): New age constrains to the western Mediterranean Basin opening

open access: yesGeologica Acta, 2007
The Oligocene deposits of Montgat are integrated in a small outcrop made up of Cenozoic and Mesozoic rocks located in the Garraf-Montnegre horst, close to the major Barcelona fault.
D. Parcerisa   +4 more
doaj   +1 more source

Solving the woolly mammoth conundrum: amino acid 15N-enrichment suggests a distinct forage or habitat [PDF]

open access: yes, 2015
Understanding woolly mammoth ecology is key to understanding Pleistocene community dynamics and evaluating the roles of human hunting and climate change in late Quaternary megafaunal extinctions. Previous isotopic studies of mammoths’ diet and physiology
Longstaffe, Fred J   +3 more
core   +2 more sources

Adiciones a la flora polínica de Pantepui (Guayana venezolana): la colección Maguire

open access: yesCollectanea Botanica, 2010
Este trabajo es un estudio sobre la morfología polínica de varias especies de plantas de Pantepui (Guayana venezolana), una región con elevada biodiversidad y un alto grado de endemismo, donde se espera un fuerte impacto del calentamiento global.
C. López-Martínez   +4 more
doaj   +1 more source

Sedimentología y vertebrados fósiles de la Formación Santa Cruz (Mioceno temprano) en Lago Posadas, suroeste de Patagonia, Argentina [PDF]

open access: yes, 2019
Lago Posadas se ubica al pie de los Andes Patagónicos Australes, en el suroeste de Argentina, donde la Formación Santa Cruz (FSC) del Mioceno temprano muestra afloramientos potentes y lateralmente continuos.
Aramendía, Inés   +3 more
core   +2 more sources

Time to better integrate paleoecological research infrastructures with neoecology to improve understanding of biodiversity long-term dynamics and to inform future conservation

open access: yesEnvironmental Research Letters, 2021
Anthropogenic pressures are causing a global decline in biodiversity. Successful attempts at biodiversity conservation requires an understanding of biodiversity patterns as well as the drivers and processes that determine those patterns.
Diego Nieto-Lugilde   +5 more
doaj   +1 more source

Paleoecology of the Maastrichtian and Danian sediment at North of Central Alborz, Iran, based on Planktonic foraminifera [PDF]

open access: yes, 2010
In order to study the fossil contents of the Ziarat-kola section for biostratigraphical purposes the 212 meters was sampled at Central Alborz. The sequence is mainly made up of monotonous grey- green to light grey marl.
Behnaz Balmaki
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

MACROFAUNA CIRCALITORALE DEL PLIOCENE INFERIORE DI CAPO S. MARCO (SARDEGNA OCCIDENTALE)

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2018
The megafauna recovered from the Lower Pliocene sequence at Capo S. Marco (Sinis Peninsula) are analysed; detailed studies concern taxonomy, stratigraphy and paleoecology.
CARLO SPANO
doaj   +1 more source

Hominin palaeoecology in Late Pliocene Malawi : first insights from isotopes (13C, 18O) in mammal teeth [PDF]

open access: yes, 2011
Carbon-13 and oxygen-18 abundances were measured in large mammal skeletal remains (tooth enamel, dentine and bone) from the Chiwondo Beds in Malawi, which were dated by biostratigraphic correlation to ca. 2.5 million years ago.
Bocherens, Herv   +3 more
core   +2 more sources

Evidence for coal forest refugia in the seasonally dry Pennsylvanian tropical lowlands of the Illinois Basin, USA [PDF]

open access: yes, 2014
The Moscovian plant macroflora at Cottage Grove southeastern Illinois, USA, is a key example of Pennsylvanian (323–299 Million years ago) dryland vegetation.
Balme   +41 more
core   +4 more sources

Home - About - Disclaimer - Privacy