it preserves them.
The ashfall beds were caused when a volcano erupted and covered the landscape with ashes. This caused a massive number of animals to die because they inhaled the ash and it coated their respiratory system and suffocated them. Then, the ashes covered their bodies and protected them from being scattered and decomposing over the millions of years.
An ashfall is a collective term for the precipitation of ash from a volcanic eruption.
A lamprophyre is a type of ultramafic intrusive igneous rock. It is very rare for fossils to be formed in igneous rocks (and they usually only form as mold fossils in extrusive deposits). As such fossils will not form in lamprophyres.
Index fossils (also known as guide fossils, indicator fossils or zone fossils).
Flowers Fossils come out of sedimentary rock. == ==
Fossils can form from pretty much anything. They normally form from animals fish and objects such as jewelry. Fossils are very unique things and show us what happened in history :) booooooooooggggggggggggiiiiiiiiieeeeeeeee mmmmmmmmmaaaaaaaaaaaannnnnn is a fossil as well ;)
No, it is not.
by having a poo
That question can only be answered by a question. Why do you think animals form the best fossils? This question is only a opinion.
Fossils form when something dies and it decays over theyears. Thenall you see are the bones. Like dinosaurs bones!
The oldest known fossils are up to 3.5 billion years old.
Some fossils are not rocks, but they form because there is so much pressure and it blends