Results 141 to 150 of about 99,980 (305)

The Cretaceous of the Elbe valley in Saxony (Germany) - a review

Carnets de Géologie, 2003
These sequences are important for the comparison of Upper Cretaceous formations in Saxony with those of the Upper Cretaceous in northern Bohemia and in the peripheral areas of the NW German-Polish Basin, in the Münsterland, Subhercynian, Eichsfeld ...
Tröger Karl-Armin
doaj  

The effect of early diagenetic processes on the quantification of fossil micrometeorite abundance and flux in the geological record

Meteoritics &Planetary Science, EarlyView.
Abstract Fossil micrometeorites (MMs) recovered from lithified sedimentary rocks, particularly iron‐rich (I‐type) cosmic spherules (CSs) provide valuable insights into past dust‐forming events. Their abundances, when combined with estimates of local sedimentation rates can be used to reconstruct the flux of extraterrestrial dust.
Isabelle S. Mattia, Matthew J. Genge, Martin D. Suttle   +2 more
wiley   +1 more source

Fascinating single‐cell red algae: models for evolution and adaptation

New Phytologist, EarlyView.
Summary The unicellular red algae, Cyanidiophyceae, that diverged early during Archaeplastida (algal and plant) evolution, occupy a variety of extreme habitats that are inhospitable for most other eukaryotes. With the use of modern genomics and genetics methods, Cyanidiophyceae show a remarkable taxonomic diversity, share haplodiplophasic life cycles ...
Frédéric Berger, Debashish Bhattacharya, Chung Hyun Cho, Seok‐Wan Choi, Julia Van Etten, Shunsuke Hirooka, Tzu‐Yen Huang, Kyle J. Lauersen, Yongsung Lee, Shao‐Lun Liu, Shin‐ya Miyagishima, Stephen D. Rader, Daniel Schubert, Hwan Su Yoon   +13 more
wiley   +1 more source

Impact of Thermal Maturation of the Upper Cretaceous Bituminous Limestone of Attarat Um Ghudran Central Jordan on Calcareous Nannofossil Preservation. [PDF]

ACS Omega, 2023
Alqudah M, Al Alaween M, Fermor A, Ali E, Wagner T, Alhakimi MH, Rahim A.   +6 more
europepmc   +1 more source

Effects of low‐tech, process‐based restoration on riparian plant communities and soil moisture of streams in the Northern Great Plains (NGP) of the United States

Restoration Ecology, EarlyView.
Abstract Introduction Process‐based restoration is novel in livestock production systems of the Northern Great Plains (NGP), and limited region‐specific evidence can impede adoption. We investigated the effects of methods such as beaver dam analogs (BDAs) on NGP plant communities.
James A. Bolyard, Jameson R. Brennan, Krista A. Ehlert   +2 more
wiley   +1 more source

A diverse assemblage of <i>Ptychodus</i> species (Elasmobranchii: Ptychodontidae) from the Upper Cretaceous of Ukraine, with comments on possible diversification drivers during the Cenomanian. [PDF]

Cretac Res, 2023
Amadori M, Kovalchuk O, Barkaszi Z, Giusberti L, Kindlimann R, Kriwet J.   +5 more
europepmc   +1 more source

Catalogue of the Hantken collection: carbonate microfacies photographs from 1872-82 [PDF]

, 1996
Maximilian Hantken (1821-1893), founding professor of the Department of Palaeontology at Budapest University, was a pioneer in stratigraphic micropalaeontological studies.
Kázmér, Miklós
core  

Microbial influence on the formation and subsequent changes of vertebrate tracks: field experiments on present‐day coastal sediments

Sedimentology, EarlyView.
ABSTRACT The presence of microbial mats is often invoked to explain the good preservation of vertebrate tracks, because they can cover and biostabilize such structures. However, microbial influence on the sediment properties when the track is made and on the track characteristics has not been so thoroughly analysed.
Isabel Emma Quijada, Lucía Maisano, Jerónimo Pan, María Florencia Yorlano, Diana G. Cuadrado   +4 more
wiley   +1 more source

Rediscovery and redescription of the only known mosasaur bone from the Turonian (Upper Cretaceous) of Poland. [PDF]

PeerJ, 2022
Skawiński T.
europepmc   +1 more source

Microbial mats in dinosaur ichnocoenoses

Sedimentology, EarlyView.
ABSTRACT Until now, the significance of microbial mats in preservation of dinosaur tracks and in reconstructing the palaeoenvironment in which dinosaurs roamed was rarely studied. Dinosaur tracks are commonly found close to ancient aquatic bodies where moist sediment had once allowed footstep registration.
Nora Noffke, Paul C. Murphey, Roger C. Buntin, Martin G. Lockley   +3 more
wiley   +1 more source