Results 1 to 10 of about 486,715 (397)
Possible poriferan body fossils in early Neoproterozoic microbial reefs
Molecular phylogeny indicates that metazoans (animals) emerged early in the Neoproterozoic era1, but physical evidence is lacking. The search for animal fossils from the Proterozoic eon is hampered by uncertainty about what physical characteristics to ...
Elizabeth C Turner
exaly +2 more sources
Preserving Fossilized Soft Tissues: Advancing Proteomics and Unveiling the Evolutionary History of Cancer in Dinosaurs [PDF]
Understanding how life-history strategies influence cancer susceptibility in dinosaurs requires a molecular-level analysis of preserved soft tissues. While previous research has largely focused on skeletal remains, the discovery of soft tissue structures
Pramodh Chitral Chandrasinghe+4 more
doaj +2 more sources
A Total-Evidence Approach to Dating with Fossils, Applied to the Early Radiation of the Hymenoptera
Phylogenies are usually dated by calibrating interior nodes against the fossil record. This relies on indirect methods that, in the worst case, misrepresent the fossil information. Here, we contrast such node dating with an approach that includes fossils
Fredrik Ronquist+2 more
exaly +2 more sources
Age estimates for hominin fossils and the onset of the Upper Palaeolithic at Denisova Cave
Katerina Douka+2 more
exaly +2 more sources
Accessibility is a key aspect for the presentation of research data. In palaeontology, new data is routinely obtained with computational techniques, such as finite-element analysis (FEA).
Stephan Lautenschlager
doaj +1 more source
Molecular phylogenetic analyses have revealed a superclade of mesangiosperms with five extant lineages: monocots, eudicots, magnoliids, Ceratophyllum and Chloranthaceae. Both Ceratophyllum and Chloranthaceae are ancient lineages with a long fossil record;
Dmitry D. Sokoloff+6 more
doaj +1 more source
Paleontological Heritage and its Conservation in the UNESCO European Geoparks. [PDF]
Together, places of scientific, historical or cultural significance within a region and the artefacts uncovered therefrom and displayed in museums and collections make up the total heritage of the region in question. Seemingly lifeless places and objects
Dan Grigorescu
doaj +1 more source
European UNESCO Geoparks: Introduction to Part II [PDF]
The concept of the volume is to survey all the key geoparks throughout Europe in terms of their palaeontological significance. The second set of 36 articles in this Part cover the long span of geological time from the Triassic to the Quaternary, arranged
Michael Benton
doaj +1 more source
Islands are a classic focus for evolutionary studies. One topic of great interest has been the evolution of “dwarfs,” significantly smaller island mammals relative to their continental counterparts.
Shoji Hayashi+9 more
doaj +1 more source
How Technology Has Thrown Us Out of Balance with Nature and Why We Need to Get Back In
We have created a technology-based environment in an effort to control our world, but we need to understand that the biological forces that shaped us continue to play a role in our future. As more and more species go extinct because of human activity, we
Donald Johanson
doaj +1 more source