Results 21 to 30 of about 25,832 (226)

Freshwater discharge controlled deposition of Cenomanian–Turonian black shales on the NW European epicontinental shelf (Wunstorf, northern Germany) [PDF]

Climate of the Past, 2015
Global warming, changes in the hydrological cycle and enhanced marine primary productivity all have been invoked as having contributed to the occurrence of widespread ocean anoxia during the Cenomanian–Turonian oceanic anoxic event (OAE2; ~94 Ma), but ...
N. A. G. M. van Helmond, A. Sluijs, J. S. Sinninghe Damsté, G.-J. Reichart, S. Voigt, J. Erbacher, J. Pross, H. Brinkhuis   +7 more
doaj   +1 more source

Vegetation change inferred from the pollen record in recent sediments from around the Lagos-East coastal environment (SW Nigeria)

Acta Palaeobotanica, 2019
Recent sediments from the coastal environment of Lagos East, Nigeria, were used to make a palynological reconstruction of the vegetation of the study area and to draw inferences about its palaeoclimate.
LINUS AJIKAH, OLUSOLA ADEKANMBI, OLUWATOYIN OGUNDIPE   +2 more
doaj   +1 more source

Paleopalynology in Colombia: a review

Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales, 2023
Palynology is an important tool for establishing age and interpreting paleoenvironments in both continental and marine deposits. This paper provides a summarized overview of the palynological information published for deposits in Colombia ranging from ...
Angelo Plata Torres, Andrés Pardo-Trujillo, Clemencia Gómez-González, José Abel Flores   +3 more
doaj   +1 more source

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

Collectanea 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, A. Lara, V. Rull, L. Campbell, S. Nogué   +4 more
doaj   +1 more source

Evidence of the oldest extant vascular plant (horsetails) from the Indian Cenozoic

Plant Diversity, 2023
Equisetum (Equisetaceae) has long been a focus of attention for botanists and palaeontologists because, given its extensive and well-documented fossil record, it is considered the oldest extant vascular plant and a key element in understanding vascular ...
Sampa Kundu, Taposhi Hazra, Tapan Chakraborty, Subir Bera, Mahasin Ali Khan   +4 more
doaj   +1 more source

The middle to late Eocene greenhouse climate modelled using the CESM 1.0.5 [PDF]

Climate of the Past, 2020
The early and late Eocene have both been the subject of many modelling studies, but few have focused on the middle Eocene. The latter still holds many challenges for climate modellers but is also key to understanding the events leading towards the ...
M. Baatsen, A. S. von der Heydt, M. Huber, M. A. Kliphuis, P. K. Bijl, A. Sluijs, H. A. Dijkstra   +6 more
doaj   +1 more source

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

, 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, Bashforth, Bashforth, Burnham, Campbell, Chaloner, DiMichele, DiMichele, Dimitrova, Dimitrova, Dolby, Eble, Eros, Falcon-Lang, Falcon-Lang, Falcon-Lang, Farley, Feldman, Gastaldo, Gastaldo, Gastaldo, Gastaldo, Greenwood, Havinga, Hofmann, Jackson, Lyons, Mahaffy, Mander, Mander, McElwain, Pfefferkorn, Prentice, Ravn, Ravn, Scheihing, Smith, Spicer, Stewart, Sugita, Van Hoof, Willard   +41 more
core   +4 more sources

New distribution record of Sarcopyramis napalensis Wall. (Melastomataceae) from Garhwal Himalaya, Uttarakhand, India

Journal of Threatened Taxa, 2016
Sarcopyramis napalensis Wall. is reported for the first time from the Garhwal Himalaya, Uttarakhand. A detailed description, phenology, distribution and figures are provided here.
J. K. Tiwari, P. Tiwari, Dinesh Singh Rawat, Radha Ballabha, C. S. Rana   +4 more
doaj   +1 more source

Holocene vegetation, climate and fire dynamics in the Serra dos Órgãos, Rio de Janeiro State, southeastern Brazil

Acta Palaeobotanica, 2020
We analysed pollen and macro-charcoal from a sediment core representing the last 9840 cal yr BP, collected at 2003 m a.s.l. in a patch of upper montane Atlantic Rain Forest (UMARF) embedded in a campos de altitude (high-elevation grassland) matrix in the
Maria Carolina Guarinello de Oliveira Portes, Hermann Behling, Vincent Montade, Hugh Deforest Safford   +3 more
doaj   +1 more source

Vegetation responses to past volcanic disturbances at the Araucaria araucana forest‐steppe ecotone in northern Patagonia

Ecology and Evolution, 2022
Volcanic eruptions play an important role in vegetation dynamics and its historical range of variability. However, large events are infrequent and eruptions with a significant imprint in today's vegetation occurred far in the past, limiting our ...
Ricardo Moreno‐Gonzalez
doaj   +1 more source