Results 81 to 90 of about 28,559 (299)

Latitudinal differences in the amplitude of the OAE-2 carbon isotopic excursion : pCO2 and paleo productivity [PDF]

open access: yes, 2012
A complete, well-preserved record of the Cenomanian/Turonian (C/T) Oceanic Anoxic Event 2 (OAE-2) was recovered from Demerara Rise in the southern North Atlantic Ocean (ODP site 1260).
Bentum, Elisabeth C. van   +3 more
core   +2 more sources

The study of the umbilical system in planktonic foraminifera in relation with depth of the Ziarat-kola section at the Maastrichtian, Central Alborz, IRAN [PDF]

open access: yes, 2009
The main aim of this research is study of the planktonic foraminifera morphogroups distinction genus to perform by changing the umbilicus area in Ziarat-kola section to find novel results.
Behnaz Balmaki   +2 more
core   +1 more source

A large abelisaurid (Dinosauria, Theropoda) from Morocco and comments on the Cenomanian theropods from North Africa

open access: yesPeerJ, 2016
We describe the partially preserved femur of a large-bodied theropod dinosaur from the Cenomanian “Kem Kem Compound Assemblage” (KKCA) of Morocco. The fossil is housed in the Museo Geologico e Paleontologico “Gaetano Giorgio Gemmellaro” in Palermo (Italy)
Alfio Alessandro Chiarenza, A. Cau
semanticscholar   +1 more source

Palaeobathymetry of the Abderaz Formation using foraminifera, Iran [PDF]

open access: yes, 2009
Abderaz Formation at its type section with an age of Turonian-early Campanian and a thickness of 300 m contains light grey shale and marl. The study of the planktonic foraminifera in isolated form led to differentiate three morphotype groups.
Ebrahim Ghasemi-Nejad   +1 more
core   +1 more source

Detection of nanoseismic events related to slope instabilities in the quarry district of Coreno Ausonio (Italy) [PDF]

open access: yes, 2016
Le cave per l’estrazione di materiale roccioso rappresentano contesti in cui possono aver luogo eventi di instabilità gravitativa causati dalle continue sollecitazioni cui sono soggette le pareti produttive, principalmente connesse alle vibrazioni dovute
FIORUCCI, MATTEO   +3 more
core   +1 more source

CRETACEOUS SCLERACTINIAN CORAL PREVERASTRAEOPSIS GEN. N. FROM CENTRAL GREECE

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2013
The aulastraeoporid coral Preverastraeopsis gen. n.represented by one species Phyllocoenia  major Hackemesser, 1936 from the Cenomanian (?Aptian-Cenomanian) of Central Greece is described.
ELŻBIETA MORYCOWA
doaj   +1 more source

Palaeoecology of the Cenomanian amber forest of Sarthe (western France)

open access: yesGeologica Acta, 2013
Cretaceous ambers have been discovered in France since the beginning of the 18th century. The best known are those from south-western France which are Late Albian-Early Cenomanian in age, but there are other important amber deposits in other regions.
Girard, Vincent   +3 more
openaire   +7 more sources

Leaf cuticular morphology links Platanaceae and Proteaceae [PDF]

open access: yes, 2005
Int. J. Plant Sci. 166(5):843–855. © 2005 by The University of Chicago.The leaf cuticular morphology of extant species of Platanus was investigated using light and scanning electron microscopy.
Carpenter, R., Hill, R., Jordan, G.
core   +2 more sources

Slimehead Size Through Time: Testing the Temperature–Size Relationship in Late Cretaceous Trachichthyidae

open access: yesEcology and Evolution, Volume 15, Issue 10, October 2025.
In 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 ...
Chloe V. Griffiths   +4 more
wiley   +1 more source

Early-Late Cretaceous (Aptian-Cenomanian) Palynomorphs [PDF]

open access: yesJournal of Micropalaeontology, 1985
Abstract. Samples from 12 wells situated mainly in the northern part of the Cyrenaica Shelf of northeast Libya have yielded palynomorph assemblages of Aptian, Albian or Cenomanian aspect. The Aptian assemblages are dominated by land-plant remains and contain relatively few dinoflagellate cysts. By contrast, the latter are generally common in those from
P. J. R. Uwins, D. J. Batten
openaire   +3 more sources

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