Results 31 to 40 of about 2,913 (213)

Fucoids or Coprolites [PDF]

open access: yesThe Journal of Geology, 1898
Reprinted from: Journal of geology, v. 6, no. 2. ; Signed: J.A. Udden. ; Caption title. ; Includes bibliographical references. ; Mode of access: Internet.
openaire   +1 more source

Beetle-bearing coprolites possibly reveal the diet of a Late Triassic dinosauriform [PDF]

open access: yesRoyal Society Open Science, 2019
Diets of extinct animals can be difficult to analyse if no direct evidence, such as gut contents, is preserved in association with body fossils. Inclusions from coprolites (fossil faeces), however, may also reflect the diet of the host animal and become ...
Martin Qvarnström   +5 more
doaj   +1 more source

Carbon and nitrogen isotopic ratios of urine and faeces as novel nutritional biomarkers of meat and fish intake [PDF]

open access: yes, 2012
Purpose Meat and fish consumption are associated with changes in the risk of chronic diseases. Intake is mainly assessed using self-reporting, as no true quantitative nutritional biomarker is available.
A Konig   +34 more
core   +1 more source

Using palaeoenvironmental DNA to reconstruct past environments: progress and prospects [PDF]

open access: yes, 2014
Palaeoenvironmental DNA (PalEnDNA) is defined as ancient DNA (aDNA) originating from disseminated genetic material within palaeoenvironmental samples. Sources of PalEnDNA include marine and lake sediments, peat, loess, till, ice, permafrost, palaeosols ...
Ahrens RJ   +20 more
core   +2 more sources

Ancient and modern scats record broken ecological interactions and a decline in dietary breadth of the critically endangered kākāpō parrot (Strigops habroptilus)

open access: yesFrontiers in Ecology and Evolution, 2023
Threatened animal taxa are often absent from most of their original habitats, meaning their ecological niche cannot be fully captured by contemporary data alone.
Alexander P. Boast   +7 more
doaj   +1 more source

Upper Paleocene-Lower Eocene biostratigraphy of Darb Gaga, Southeastern Kharga Oasis Western Desert, Egypt [PDF]

open access: yes, 2016
© The Author(s), 2016. This is the author's version of the work and is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Journal of African Earth Sciences 118 (2016): 12-23, doi:10.1016/j ...
Abdel-Sabour, Ayman   +2 more
core   +1 more source

The trace fossil Lepidenteron lewesiensis (Mantell, 1822) from the Upper Cretaceous of southern Poland [PDF]

open access: yes, 2013
Lepidenteron lewesiensis (Mantell, 1822) is an unbranched trace fossil lined with small fish scales and bones, without a constructed wall. It is characteristic of the Upper Cretaceous epicontinental, mostly marly sediments in Europe.
Jurkowska, Agata, Uchman, Alfred
core   +1 more source

Lipid analysis of vertebrate coprolites [PDF]

open access: yes, 2012
Lipid analysis is a relatively new approach to obtaining paleobiological and paleoecological information from coprolites. Lipids in feces are derived from multiple sources, including diet, digestive processes and digestive tract micro-organisms. Feces from herbivorous animals contain a much wider range of lipids than those from carnivores due to the ...
Bull, Ian D, Gill, Fiona L
core   +2 more sources

Application of Autofluorescence for Confocal Microscopy to Aid in Archaeoparasitological Analyses [PDF]

open access: yes, 2019
Confocal laser scanning microscopy (CLSM) was used to examine archaeoparasitological specimens from coprolites associated with La Cueva de los Muertos Chiquitos (CMC) located near present-day Durango, Mexico.
Elowsky, Christian, Morrow, Johnica Jo
core   +1 more source

A unique Valanginian paleoenvironment at an iron ore deposit near Zengővárkony (Mecsek Mts, South Hungary), and a possible genetic model [PDF]

open access: yes, 2007
The spatially restricted Early Valanginian iron ore (limonite) and manganese deposit at Zengõvárkony (Mecsek Mts, southern Hungary) contains a rich, strongly limonitized, remarkably large-sized (specimens are 30–70% larger than those at their type ...
Abed-Navandi D.   +42 more
core   +1 more source

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