The major taphonomic processes that control insect preservation in carbonate rocks
(limestones, travertines and nodules) are biological: insect size and wingspan, degree of …

Carbonate concretions occur in sedimentary rocks of widely varying geological ages
throughout the world. Many of these concretions are isolated spheres, centered on fossils …

Scientific drilling to recover sediment core and fossil samples is a promising approach to
increasing our understanding of species evolution in ancient lakes. Most lake drilling efforts …

The Jurassic marine biota of La Voulte-sur-Rhône, France, is characterized by three-
dimensional preservation of soft-bodied animals and their internal organs. In contrast to …

Substantial amounts of authigenic clay minerals can accumulate in terrestrial mudstones
where the following conditions are met: surface or pore waters are alkaline, aqueous silica …

Three-dimensional preservation of a non-biomineralized arthropod occurs in carbonate
concretions in a volcaniclastic deposit from the Wenlock Series of Herefordshire, England …

The search for organic matter on Mars is one of the major objectives of Mars exploration.
However, limited detection of organic signals by Mars rovers to date demands further …

A unifying model is presented that explains most of the major changes seen in fossil
preservation and redox conditions across the Precambrian–Cambrian transition. It is …

Abstract The recently discovered Fezouata Biota, from the Early Ordovician (late
Tremadocian to late Floian) of Morocco, preserves a diverse soft-bodied fauna. While …

Abstract The Barstow Formation (ca. 19–13 Ma) of southern California, USA, is a terrestrial
sequence known for its diverse Miocene mammalian faunas. The formation spans the …