a new species is created when a group of organisms within a species separates and develops unique characteristics. The new species is generally distinct from the original species and can no longer interbreed with it. ‘The process of transformation of species into new one with the accumulation of variations in time is known as speciation.’ […]
Ichno-fossils are an expression of the alteration of the depositional fabric in sedimentary rocks by living organisms. Often these expressions are part of animal behavior or traces hence called “trace fossils”. Common structures are burrows, boring, trails and tracks. Trace fossils can be common in un-fossiliferous rocks, that can extend the geologists capability to interpret
In paleontology fossils can be of many types as explained below – Body fossils :- These are well preserved entire organism, unaltered and altered hard parts and naturally formed moulds and casts (+ vs and -ve impression) are called as body fossils. Chemical fossils :- These are well preserved paleo-proteins and amino acids (paleo-biochemistry) and
