water
lisards
false
The presence of fins on a fossil suggests that the organism likely lived in water at some point in its life. This could indicate that the area where the dig took place was once covered by water or that the organism had adapted to an aquatic environment.
Microorganisms, such as bacteria and algae, have the most abundant fossil evidence due to their vast numbers and widespread distribution throughout Earth's history. Fossilized microbial mats and stromatolites, for example, provide valuable insights into early life on Earth.
Clam
No, most animals and plants that have lived on Earth do not leave fossil evidence. Fossilization is a rare process that only occurs under specific conditions, so many organisms decompose before they can become fossils. This is why the fossil record is incomplete and biased towards certain types of organisms.
* the organism must be common in rocks from most of the world *the organism must have lived for only a geologically short period of time( a few million years to a few hundred million years) *the organism must be easy to identify.(trilobites and ammonites are 2 kinds of organisms that are used as index fossils).
* the organism must be common in rocks from most of the world *the organism must have lived for only a geologically short period of time( a few million years to a few hundred million years) *the organism must be easy to identify.(trilobites and ammonites are 2 kinds of organisms that are used as index fossils).
A hard shell organism have more of a chance to become a fossil .
A fossil cast is a type of fossil formed when sediments fill in the hollow space left by a decomposed organism. The sediments harden into rock, preserving the shape of the organism in the form of a cast. This can provide scientists with valuable information about the size and shape of the original organism.
the organism must be buried in sediment soon after it dies.
The most recent Ediacaran organism is said to have lived prior to 1946 after fossils were found.