Results 81 to 90 of about 16,093 (213)
The Depositional Record, Volume 12, Issue 4, September 2026.These findings confirm that the Campanian‐aged Bozbent Member turbiditic sequence in the Eastern Pontides was deposited in an extensional fore‐arc basin and therefore exhibits the petrographic and geochemical characteristics of passive margin sandstones.
Çiğdem Saydam Eker +6 more
wiley +1 more source
(Table 2) Planktonic foraminifer Oligocene biostratigraphy of ODP Hole 101-628A
, 1993 (Table 2) Planktonic foraminifer Oligocene biostratigraphy of ODP Hole 101 ...
Farnham, Christie +5 more
core +1 more source
The Depositional Record, Volume 12, Issue 4, September 2026.Integrated petrographic, mineralogical and geochemical workflow for reconstructing the diagenetic evolution of the Middle Eocene Jahrum Formation in the Zagros Basin. The diagram illustrates the methodological framework combining field observations, laboratory analyses (XRD, SEM‐EDS, stable isotopes, cathodoluminescence), pyrite framboid geochemistry ...
Mehdi Baniasadi +3 more
wiley +1 more source
Triassic ammonoid biostratigraphy: an overview
, 2010 The Triassic chronostratigraphic scale was built on two centuries of research on ammonoid biostratigraphy and biochronology. Two Triassic stage bases and all of the Triassic substages are currently defined by ammonoid bioevents.
S. G. Lucas +7 more
core +1 more source
Conodont biostratigraphy in the Middle–Upper Ordovician boundary beds of Estonia [PDF]
Estonian Journal of Earth Sciences, 2008 Conodonts of the uppermost Uhaku, the Kukruse, and the lower Haljala stages (uppermost Darriwilian and lower Sandbian) of Estonia are discussed. The distribution of conodonts within the Pygodus serra, P.
Viira, Viive
doaj
The Botrychiopsis genus and its biostratigraphic implications in Southern Paraná Basin
Anais da Academia Brasileira de Ciências, 2003 Botrychiopsis has been considered an important floristic element of Westphalian/Artinskian associations of the Paraná Basin. The occurrence of Botrychiopsis in roof-shales of the Rio Bonito Formation in Southern Paraná Basin (Quitéria area), supported by
André Jasper +3 more
doaj +1 more source
Red to Green: A Lipid Biomarker Record of Tonian‐Ediacaran Algae in Siberia
Geobiology, Volume 24, Issue 5, September/October 2026.ABSTRACT Multiple lines of evidence point to a major diversification of Eukarya in the late Tonian period, ca. 800–720 Ma ago. Regular steranes, lipid biomarkers primarily sourced from eukaryotes, are first unambiguously reported from multiple sites. Here, we present lipid biomarker stratigraphic records from two drill‐cores from the Lena‐Anabar Basin ...
Adriana I. Rizzo +7 more
wiley +1 more source
, 2010 Smithian; Triassic; ammonoids; Crittenden Springs; Elko County; taxonomy; biostratigraphy ...
James F. Jenks, Arnaud Brayard, Thomas Bruehwiler and Hugo Bucher
core
Stratigraphic palynology of Devonian boreholes from northern Saudi Arabia
Carnets de Géologie, 2005 This extended abstract describes well-preserved palynomorph assemblages recovered from Devonian strata in five shallow boreholes in the northern part of Saudi Arabia.
Breuer Pierre +5 more
doaj
New Phytologist, Volume 251, Issue 6, Page 3627-3639, September 2026.Kimmerera cyanifera gen. et sp. nov. with associated cyanobacteria, holotype UWBM 116051. Summary Through symbiotic associations with microbes, mosses play many important ecological roles in terrestrial ecosystems, such as facilitating trophic interactions and nitrogen cycling.
Zane Walker +4 more
wiley +1 more source