Results 81 to 90 of about 8,490 (221)

Sedimentary Ancient DNA Tracks Multi‐Kingdom Ecosystem Reorganizations Following Sequential Human Land Use at Crawford Lake

Molecular Ecology, Volume 35, Issue 17, September 2026.
ABSTRACT Crawford Lake has an exceptional stratigraphic record that began recording biannual (varved) sedimentation in the lake basin ~750 years ago, preserving evidence of shifting cultural zones and agricultural practices, from Late Woodland Period Indigenous agriculturalists to the impacts of industrialization during the late 19th century.
Tyler J. Murchie, Matthew V. Emery, Scott L. Cocker, Libby Natola, Melanie Kuch, Linda Y. Rutledge, Francine McCarthy, Michael F. J. Pisaric, Hendrik N. Poinar   +8 more
wiley   +1 more source

Mechanical and chemical techniques for separating microfossils from rock, sediment and residue matrix

, 1989
Microfossils are most profitably studied as discrete specimens that have been freed from the enclosing rock matrix. Techniques for separating microfossils from matrix and from matrix residues are numerous and relatively simple. Choice of a procedure will
Walter C. Sweet, Anita G. Harris
core   +1 more source

New vertebrate microfossils expand the diversity of the chondrichthyan and actinopterygian fauna of the Maastrichtian–Danian Hornerstown Formation in New Jersey [PDF]

Acta Palaeontologica Polonica
The abundance of shark and actinopterygian fossils in the Cretaceous and Paleogene strata of the Atlantic Coastal Plain is well documented; but much remains unknown about the survivorship patterns of these major components of shallow marine faunas in the
ZACHARY M. BOLES, PAUL V. ULLMANN, IAN PUTNAM, MARIELE FORD, JOSEPH T. DECKHUT   +4 more
doaj   +1 more source

Charnia and other late Ediacaran macrofossils preserved in turbiditic deposits of the Indreelva Member (Finnmark, Norway)

Palaeontology, Volume 69, Issue 5, September/October 2026.
Abstract The fossil genus Charnia is emblematic of the evolutionary expansion of metazoans during the late Ediacaran. The first discovery of Charnia specimens from Scandinavia is here reported, alongside new examples of Palaeopascichnus, Aspidella‐type holdfasts, and possible scratch circles.
Yorick P. Veenma, William J. McMahon, Alexander G. Liu, Jan Ove R. Ebbestad, Sten‐Andreas Grundvåg, Anette E. S. Högström, Magne Høyberget, Sören Jensen, Neil S. Davies   +8 more
wiley   +1 more source

Microfossils in micrites from Serra da Bodoquena (MS), Brazil: taxonomy and paleoenvironmental implications [PDF]

, 2012
Microfossils present in Quaternary micrites from Serra da Bodoquena, Mato Grosso do Sul State, Brazil, are here described for the first time. The studied taxa are: a) ostracods: Candona sp., Candonopsis sp., Cyclocypris sp., Cypria sp., Cypridopsis sp ...
Boggiani, Paulo Cesar, Utida, Giselle, Oliveira, Emiliano C., Petri, Setembrino   +3 more
core   +1 more source

Biotic and abiotic processes in Ediacaran spheroid formation

Frontiers in Earth Science
Organic-rich shales from the uppermost Doushantuo Fm. (South China) record one of the most negative carbonate carbon isotopic excursions in Earth’s history, known as the Shuram excursion, and contain meter to micro-size spheroids.
Fuencisla Cañadas, Dominic Papineau, Dominic Papineau, Dominic Papineau, Dominic Papineau, Zhenbing She, Zhenbing She   +6 more
doaj   +1 more source

PROBLEMATIC MICROFOSSILS FROM THE LOWER KARROO BEDS IN SOUTH AFRICA [PDF]

, 1973
A problematic group of microfossils has recently been recovered from strata of Permian age, in the northern part of the Karroo basin in South Africa. This article attempts to present the information that is presently known about them.
McLachlan, I. R.
core  

Microfossils

The author provides an overview of the study of microfossils. He explains what they are, where they are found and how they are studied. The reader is also provided with specific examples and the types of microfossils that are easily studied.
Jere Lipps
core  

Abundance of microfossils of sediment core RC13-273

, 2006
Abundance of microfossils of sediment core V29 ...
CLIMAP Project Members, CLIMAP Project Members (6978431)   +1 more
core   +1 more source

Organic microfossils from Hungarian Cretaceous sediments [PDF]

, 2000
This paper deals with the LM results of the organic microfossils isolated from Hungarian Cretaceous sediments from the following three localities: Lippó, Boly and Bácsalmás.
Kedves Miklós
core