Results 41 to 50 of about 6,258 (199)
Transformation of Dry Steppe Soils under Long Term Agrogenic Impacts in the Area of Ancient Olbia [PDF]
, 2015 The results of the study of dark chestnut soils (Kastanozems) differing in the time and intensity of their agricultural use and in the duration of the fallow stage are analyzed.
Lisetskii, F. N., Rodionova, M. E.
core +1 more source
Fragments of the earliest land plants [PDF]
, 2003 The earliest fossil evidence for land plants comes from microscopic dispersed spores. These microfossils are abundant and widely distributed in sediments, and the earliest generally accepted reports are from rocks of mid-Ordovician age (Llanvirn, 475 ...
CH Wellman +25 more
core +1 more source
Química Nova, 2007 Coprolites are fossilized faeces that constitute an important source of palaeobiological informations. This paper describes the characterization of some coprolite materials originated from the Romualdo Member of the Santana Formation (Araripe Basin ...
Ricardo Jorge Cruz Lima +5 more
doaj +1 more source
The Anatomical Record, EarlyView.Abstract The Upper Cretaceous São José do Rio Preto Formation (Bauru Group, southeastern Brazil) has yielded a fragmentary but taxonomically diverse record of titanosaur sauropods, although elements from cervical series remain scarce. Here, we describe a nearly complete sauropod axis from the Vila Ventura Paleontological Area, representing an uncommon ...
Bruno A. Navarro +7 more
wiley +1 more source
A king-sized theropod coprolite [PDF]
Nature, 1998 Fossil faeces (coprolites) provide unique trophic perspectives on ancient ecosystems. Yet, although thousands of coprolites have been discovered, specimens that can be unequivocally attributed to carnivorous dinosaurs are almost unknown. A few fossil faeces have been ascribed to herbivorous dinosaurs1,2,3, but it is more difficult to identify ...
Karen Chin +3 more
openaire +1 more source
Synchrotron phase-contrast microtomography of coprolites generates novel palaeobiological data
Scientific 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
Diet of bird‐like troodontid dinosaurs: synthesis of a contentious clade
Biological 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
Morphometric and Paleobiological Insights Into Pleistocene Sicilian Wolf Populations
Acta Zoologica, EarlyView.ABSTRACT The Pleistocene wolves (Canis lupus) from Sicily represent one of the few known insular populations of this species from that time period. Despite their potential relevance for understanding carnivore adaptations in insular contexts, no dedicated study has previously investigated their morphology and evolutionary significance.
Domenico Tancredi +3 more
wiley +1 more source
Agronomy, 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
Lipid analysis of vertebrate coprolites [PDF]
, 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