How Many Distinct Groups Are Fossils Studied
as with the living species, fossils too are studied under
sections referred to as "kingdoms." In the 19th
century, fossils were grouped together under two basic
categories: either plants or animals. Subsequent research
and discoveries made it necessary for other main fossil
groups to be established, including for life forms such
as fungi and bacteria. Under the fossil classification
developed in 1963, fossils began to be studied in the
form of five separate kingdoms:
(THE GREATEST SPONGE REEF ON EARTH
This sponge reef of 145 million years old is a trace of
the Tethys Ocean floor. The sponges of our day are no
different from those that make up the hill. These sponges
make it clear that they have not undergone any evolution.)
1. Animalia fossils from the animal kingdom, of
which the oldest known specimens date back 600 million
2. Plantae fossils from the plant kingdom, of
which the oldest known specimens date back 500 million
3. Monera fossils of bacteria with no nucleus,
the oldest known specimens dating back 3.9 billion years.
4. Protoctista fossils of single-celled organisms.
The oldest known specimens date back 1.7 billion years.
5. Fungi fossils of multi-celled organisms, of
which the oldest known specimens date back 550 million
years. This article is based on the works of Harun
150 years ago, the British naturalist Charles Darwin
proposed a theory based on various observations
made during his travels, but which could not be
supported by any subsequent scientific findings.
In essence, his theory of evolution consisted of
various scenarios, ...More
WHAT IS A FOSSIL?
the broadest definition, a fossil is the remains
of a living thing that lived long ago and that has
survived down to the present day by being preserved
under natural conditions. The fossils that come
down to us are parts of an organism, or remains
left behind when the living thing concerned was
still alive ...More