It’s not causing panic! in the fossil record, but a 430-million-year-old mollusk discovery in Britain is a source of ...

Root nodules, meanwhile, are knob-like structures formed on and from roots of certain plants, primarily legumes.) This type ...

Listen: Fossil-hunters Neville and Sally Hollingworth ... It had been encased in one of the many limestone nodules that were falling out from an exposed clay layer. The landowner, Adam Knight ...

The early Jurassic marine fossils date from about 183 million years ... above them by hard mineral layers known as concretions and nodules which built up around them after death.