Exceptional preservation of reproductive organs and giant sperm in Cretaceous ostracods [PDF]
Proceedings of the Royal Society B: Biological Sciences, 2020 The bivalved crustacean ostracods have the richest fossil record of any arthropod group and display complex reproductive strategies contributing to their evolutionary success. Sexual reproduction involving giant sperm, shared by three superfamilies of living ostracod crustaceans, is among the most fascinating behaviours.
He Wang +6 more
openaire +4 more sources
Exceptional preservation of Palaeozoic steroids in a diagenetic continuum [PDF]
Scientific Reports, 2013 The occurrence of intact sterols has been restricted to immature Cretaceous (~125 Ma) sediments with one report from the Late Jurassic (~165 Ma). Here we report the oldest occurrence of intact sterols in a Crustacean fossil preserved for ca. 380 Ma within a Devonian concretion.
Melendez, Ines +2 more
openaire +4 more sources
Exceptional preservation and foot structure reveal ecological transitions and lifestyles of early theropod flyers [PDF]
Nature Communications, 2022 The shape of bird toe pads and foot scales can be used to infer their behaviour. Here, the authors examine fossil evidence of toe pads and scales, in addition to claws and bones, from birds and close relatives, illustrating diverse lifestyles and ...
Michael Pittman +9 more
doaj +2 more sources
Exceptional preservation of eye structure in arthropod visual predators from the Middle Jurassic [PDF]
Nature Communications, 2016 Understanding how ancient animals perceived their environment is difficult due to a lack of fossilized eye structures. Here, the authors reconstruct the compound eye of a 160-million-year old thylacocephalan arthropod, Dollocaris, finding evidence of ...
Jean Vannier +4 more
doaj +2 more sources
New exceptionally preserved arthropod from the Furongian of Canada [PDF]
BMC BiologyBackground Corcoraniidae is a rare and understudied family of lower Paleozoic euarthropods that are important for understanding early chelicerate evolution.
Russell D. C. Bicknell +4 more
doaj +2 more sources
The structure and extraction of silk fibroin and its applications in fruit and vegetable preservation: a review [PDF]
Food Chemistry: XIn response to increasing global demands for enhanced food safety and quality, the development of safe and efficient postharvest preservation technologies has emerged as a critical research priority in agricultural sciences.
Hong Sun +4 more
doaj +2 more sources
Historic Preservation Awards master list, 1995-2023 [PDF]
, 2023 The Historic Preservation Awards recognize the exceptional accomplishments in the preservation, rehabilitation, and interpretation of our architectural and cultural heritage.
South Carolina State Historic Preservation Office
core +1 more source
Three-dimensionally preserved soft tissues and calcareous hexactins in a Silurian sponge: implications for early sponge evolution [PDF]
Royal Society Open Science, 2019 Sponges (Porifera), as one of the earliest-branching animal phyla, are crucial for understanding early metazoan phylogeny. Recent studies of Lower Palaeozoic sponges have revealed a variety of character states and combinations unknown in extant taxa ...
Ardianty Nadhira +8 more
doaj +1 more source
In situ SEM/EDS compositional characterization of osteocytes and blood vessels in fossil and extant turtles on untreated bone surfaces; different preservational pathways microns away [PDF]
PeerJ, 2020 Osteocytes and blood vessels are the main cellular and tissue components of the bone tissue of vertebrates. Evidence of these soft-tissue microstructures has been widely documented in the fossil record of Mesozoic and Cenozoic turtles. However, all these
Edwin-Alberto Cadena
doaj +2 more sources
Communications Earth & Environment, 2023 Trilobites with appendages from the Rust Formation of New York State were discovered in the 1870s and represent one of the earliest known cases of exceptional preservation of non-biomineralized tissues.
Sarah R. Losso +2 more
doaj +1 more source