Christine: [...] I think everything has feelings. Even a piece of stone that was carved all those years ago. I feel that it's, well they made it a living thing didn't they? Siân: Mmmm Christine: When they did that. Siân: Yes, when they created it? Christine: Yes. They made a living thing. So I feel, yes, I think when it goes back into the ground it will be home. Siân: Yes, that's really interes...

Diffusion rates of numerous trace elements in bone at 20 °C were determined using laser-ablation inductively coupled plasma mass spectrometry analysis of experimentally induced diffusion profiles. Diffusivities are about 1 order of magnitude slower than current semiquantitative geochemical views and about 1.5 orders of magnitude faster than indirect radiotracer estimates. Intrabone volume diffu...

The discovery in the 1980's that DNA could be extracted and sequenced from extinct animals opened-up a whole new area of research paleobiology. oldest authenticated sequence ever recovered is between 1.65 1.1 million years (My) old extrapolation models on degradation suggest this close to temporal limit survival. However, recent data cell nuclei 30 80 My-old fossil cells plants dinosaurs show p...

The Spence Shale Lagerstätte is a middle Cambrian (Miaolingian Series; Wuliuan Stage) fossil deposit in northern Utah and southern Idaho, USA. At present, it known to preserve 89 species, from at least 10 phyla, of biomineralizing soft-bodied taxa, represents the only major age Laurentia outside Canadian Rockies. In addition taxonomic diversity, exposures represent variety depositional environm...

Wetlands are important to continental evolution, providing both arenas and refugia for emerging declining biotas. This significance the high preservation potential make resulting fossiliferous deposits essential our understanding of past future biodiversity. We reconstruct trophic structure age early Permian Manebach Lake ecosystem, Germany, a thriving wetland at time when tropical biosphere fa...

Abstract Although rare, sedimentary deposits containing exceptionally preserved fossils (i.e., Lagerstätten) have shaped our view on the history of life at particular intervals, such as those recording Cambrian radiation animals. Therefore, understanding processes that lead to fossilization unmineralized tissues is crucial better interpret these fossil assemblages. A key issue linked role clay ...

We present a new, simple and physically motivated parameterization, based on the ratio of Thorpe Ozmidov scales, for irreversible turbulent flux coefficient $\varGamma _{\mathcal {M}}= {\mathcal {M}}/\epsilon$ , i.e. rate ${\mathcal {M}}$ at which background potential energy increases in stratified flow due to macroscopic motions dissipation kinetic $\epsilon$ . Our parameterization covers all ...

Premise of research. Geochemical fingerprinting fossil plants is a relatively new research field complementing morphological analyses and providing information for paleoenvironmental interpretations. Ginkgoales contains single extant species but was diverse through the Mesozoic an excellent target biochemical analyses.Methodology. Cuticles derived from fresh fallen autumn leaves Ginkgo biloba s...