Results 211 to 220 of about 242,844 (341)

<i>Lingyuanfructus</i>: The First Fossil Angiosperm with Naked Seeds. [PDF]

Life (Basel)
Wang X.
europepmc   +1 more source

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

Solar forcing on elemental and nanomechanical variations in Late Cretaceous lacustrine deposits. [PDF]

Sci Rep
Liu Y, Wang X, Cui K, Wu M, Qi X, Zhang S.   +5 more
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

Ammonite survival across the Cretaceous-Paleogene boundary confirmed by new data from Denmark. [PDF]

Sci Rep
Machalski M, Olszewska-Nejbert D, Landman NH, Jagt JWM, Garb M, Milàn J.   +5 more
europepmc   +1 more source

Foraminiferal biostratigraphy and paleoenvironments of the Cretaceous Colorado Group in Southeastern and East Central Alberta, Canada

, 2004
Khalifa Elberdak
openalex   +2 more sources

Microbially generated ferruginous crusts: A potential biosignature of continental input in coastal settings

Sedimentology, EarlyView.
ABSTRACT Thin ferruginous sandy crusts are common on top of sandstone beds in the Early Permian post‐glacial deposits of the Paraná Basin in southern Brazil. These crusts usually preserve wrinkle structures, suggesting that they might be a product of microbial mediation.
Patrícia Weschenfelder, Renata Guimarães Netto, Alisson Klayton Martins   +2 more
wiley   +1 more source

Mid-Cretaceous sand fly (Psychodidae, Phlebotominae) illuminates early diversification of Old World fauna. [PDF]

Sci Rep
Kaczmarek S, Loyer M, Depaquit J, Krzemiński W, Soszyńska A.   +4 more
europepmc   +1 more source

Diversity of late cretaceous dinosaurs from Mexico

, 2015
Ángel Alejandro Ramírez-Velasco, René Hernández-Rivera   +1 more
openalex   +2 more sources

Growth and reworking of freshwater microbially‐mediated carbonates in wind‐stressed lake margins (Lago Sarmiento, Southern Patagonia)

Sedimentology, EarlyView.
ABSTRACT Understanding the biotic and abiotic influences on the deposition and diagenesis of recent microbial carbonates is crucial for addressing the environmental and ecological significance of ancient organosedimentary structures. This study investigates these factors and their expression in the microstructure of Holocene tufa thrombolites from a ...
Paulo Quezada, Mauricio Calderón, Anelize Bahniuk, Carolina Henríquez, Tatiana Stepanenko, José Pérez‐Donoso, Nicolás Bruna, Larissa Santos, Guilherme Fedalto, Luis Mancini, Leonardo Fadel Cury   +10 more
wiley   +1 more source