A strange layer in the fossil record contains evidence that fern populations exploded following the mass extinction that ended the Cretaceous period. Scientists want to know why. Amanda was an ...

Body fossil – The remains of part (or all) of an actual organism. In the kits, the trilobite (2), brachiopod (3), dinosaur bone (4), horse tooth (5), petrified wood (6), graptolite (7), fish (8), ...

What makes the silcrete plant fossils so fascinating is the superfine preservation of plant material. This includes fine ...