Paleoenvironmental Stasis for the Bioturbating Community During the Paleocene-Eocene Thermal Maximum at the Southern Iberian Margin. [PDF]
GeobiologyABSTRACT During the Paleocene‐Eocene Thermal Maximum (PETM), there was an increase in global temperatures and emissions of isotopically depleted carbon, resulting in a negative carbon isotope excursion (CIE). This climatic event caused a widespread ocean deoxygenation, leading to substantial biotic turnover.
Miguez-Salas O +2 more
europepmc +2 more sources
Calcareous nannoplankton of the Red Sea
, 2008 The objective of this thesis is to understand the calcareous nannoplankton response to past environmental changes in the northern Red Sea over the last 60,000 years. Calcareous nannoplankton findings, supplemented by geochemical and sedimentological data, were compared with other marine and terrestrial proxy records and discussed with respect to the ...
Legge, Heiko-Lars (Dipl.)
core +3 more sources
Helicosphaera carteri (Prymnesiophyceae) under high carbon dioxide: An experimental study. [PDF]
J PhycolAbstract The coccolithophore Helicosphaera carteri is an understudied, yet ecologically and biogeochemically important, marine calcifier. Hence, its response to ocean acidification has implications for ecosystem function and the marine carbon cycle. Here we employed dilute batch cultures featuring a coupled C‐system manipulation (295, 444, and 600 μatm
Bianco S +8 more
europepmc +2 more sources
Global Warming and Mass Extinctions Associated With Large Igneous Province Volcanism
Geophysical Monograph Series, Page 83-102., 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.
David P. G. Bond, Yadong Sun
wiley +1 more source
Slimehead Size Through Time: Testing the Temperature-Size Relationship in Late Cretaceous Trachichthyidae. [PDF]
Ecol EvolIn this study, we use the extensive fossil record of the extinct Late Cretaceous Trachichthyid fish genus, Hoplopteryx, from the British Chalk Group to explore how this family responded to past climate change events. Our study is the first to demonstrate that seawater palaeotemperature, estimated from oxygen stable isotope values, is a significant ...
Griffiths CV +4 more
europepmc +2 more sources
Almost billfish: convergent longirostry, micro-dentition, and possible glandular sinuses in a large teleost fish from the Upper Cretaceous of Northern Italy. [PDF]
J AnatA fossil rostrum fragment of a large teleost fish from the Upper Cretaceous of Northern Italy reveals remarkable anatomical convergences with Cenozoic and Recent billfishes (marlins, swordfishes, and akin). The extinct group Plethodidae independently acquired a long snout, micro‐teeth, and oil‐gland sinuses well before the evolution of true billfishes.
Serafini G +5 more
europepmc +2 more sources
Indonesian Journal on Geoscience, 2014 DOI: 10.17014/ijog.v6i1.115The massive change in calcareous nannoplankton assemblages throughout Cretaceous/Tertiary (K/T) boundary (65.5 M.a.) has been illustrated by several authors.
Panuju Panuju
doaj +1 more source
Nannoplankton as indicators of climatic variability in the Upper Pliocene [PDF]
, 2011 Discoasters are the remains of an enigmatic group of nannoplankton, whose last representatives disappeared globally at 1.89 Ma. The one million years prior to their extinction has been analysed in high time resolution and a global database has been ...
core +2 more sources
Geologica Carpathica, 2015 Detailed analysis of microplankton occurrence (planktonic foraminifera, nannoplankton, dinocysts) in Neogene sediments situated at the north-western and south-eastern margins of Ukraine enabled us to distinguish 10 associations of oceanic plankton which ...
Gozhyk Petro +3 more
doaj +1 more source
Indonesian Journal on Geoscience, 2014 DOI: 10.17014/ijog.v5i1.92The sample studied was derived from the base of core MD 982156, one of the boreholes obtained during the IMAGES Expedition. The expedition was carried out as a research cooperation between Indonesia and French Governments using ...
Mimin Karmini Adisaputra, Dida Kusnida
doaj +1 more source