Results 41 to 50 of about 6,337 (221)

Synchrotron phase-contrast microtomography of coprolites generates novel palaeobiological data

open access: yesScientific Reports, 2017
Coprolites (fossil faeces) reveal clues to ancient trophic relations, and contain inclusions representing organisms that are rarely preserved elsewhere.
Martin Qvarnström   +4 more
doaj   +1 more source

Paleomicrobiology: revealing fecal microbiomes of ancient indigenous cultures. [PDF]

open access: yesPLoS ONE, 2014
Coprolites are fossilized feces that can be used to provide information on the composition of the intestinal microbiota and, as we show, possibly on diet.
Raul J Cano   +8 more
doaj   +1 more source

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

The onset of grasses in the Amazon drainage basin, evidence from the fossil record [PDF]

open access: yes, 2020
Poaceae (the grass family) originated in the Cretaceous, but first dominate the palynological records of the Amazon drainage basin (ADB) in the Neogene (23 to 2.5 million years ago (Ma)).
Hoorn, Carina, Kirschner, Judith A.
core   +3 more sources

Inter‐ and intraspecific variation in theropod dinosaur dental microwear and its palaeoecological implications

open access: yesThe Anatomical Record, EarlyView.
Abstract Differences in skull and tooth morphology, stomach contents, and estimated bite force between medium‐to‐large sized (≥100 kg) predatory theropod dinosaurs have long been suspected to correlate with differences in their diets and dietary guilds (e.g., hypercarnivory, piscivory).
Cassius Morrison   +9 more
wiley   +1 more source

Diet of bird‐like troodontid dinosaurs: synthesis of a contentious clade

open access: yesBiological Reviews, EarlyView.
ABSTRACT Troodontidae is a clade of small‐to medium‐sized maniraptoran theropods that mainly lived in Laurasia (modern Asia, North America and Europe) during the Jurassic and Cretaceous periods and are believed to have had a variety of diets. The uniqueness of troodontid teeth suggests that they diverged from the typical flesh‐based diet of non‐avian ...
Yui Chi Fan   +2 more
wiley   +1 more source

Exceptional coprolite association from the Early Cretaceous continental Lagerstätte of Las Hoyas, Cuenca, Spain.

open access: yesPLoS ONE, 2018
Coprolites are some of the most abundant fossils at the Las Hoyas site, a well-known Early Cretaceous Konservat-Lagerstätte located in Cuenca, central Spain.
Sandra Barrios-de Pedro   +3 more
doaj   +1 more source

Manure Fertilization Gives High-Quality Earthworm Coprolites with Positive Effects on Plant Growth and N Metabolism

open access: yesAgronomy, 2019
Humic substances (HS) are important soil components playing pivotal roles in guaranteeing long-term soil fertility. In this study, the chemical and biological properties of HS extracted from earthworm coprolites collected in soils subjected to different ...
Michela Schiavon   +3 more
doaj   +1 more source

Neo‐Taphonomic Analysis of Prey Bone Remains Accumulated by Golden Eagle (Aquila chrysaetos): A Case of Nests in Southern France

open access: yesInternational Journal of Osteoarchaeology, EarlyView.
ABSTRACT The golden eagle (Aquila chrysaetos) nests in rock cavities where it accumulates prey bone remains during the breeding season. Because nests can be reoccupied from year to year, these faunal elements can form remarkable bone accumulations and, in the sub‐fossil record, be mixed with assemblages derived from human or other predator activities ...
Juliette Ripond   +5 more
wiley   +1 more source

Crossed Tracks: Mesolimulus, Archaeopteryx, and the Nature of Fossils [PDF]

open access: yes, 2019
Organisms leave a variety of traces in the fossil record. Among these traces, vertebrate and invertebrate paleontologists conventionally recognize a distinction between the remains of an organism’s phenotype (body fossils) and the remains of an organism ...
Finkelman, Leonard
core   +1 more source

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