Paleobotany definition for fossils , ten different types of fossils like amber mold and casts chemical fossils compression impression petrification microfossils macrofossils pseudofossils index fossils coal and fossilization were explained with different photos and explanation

1. Dr. P. Nithiya
Lecturer,
Seethalakshmi Ramaswami college
Trichirappalli - 2

2.  Fossils are remains of once living
organisms

3.  According to Arnold
“ the relic of some former living things plants
or animals embedded in or dug out of the
superficial deposits in past geological
periods”.

4.  Fossils
 Chemical
 Trace
 Micro fossils
 Mega fossils
 Sub fossils
 Pseudo fossils
 Derived fossils
 Coal fossils
 Amber
 Index fossils

5.  Chemical which found in rocks are called
chemical fossils

7.  Impression made on the substrate by an
organisms activities (like walking) and that
marks or imprints preserved called trace
fossils

9.  Minute or very small fossils remains which
cannot be seen by naked eyes.
 That requires magnification glass or
microscope

13.  Large part or whole organism when
preserved in the sedimentary deposits and
easily visible to naked eye

14.  Compression
 Impression
 Petrification
 Cast and Mold

15.  Any plant part compressed by particle placed
on the sediments and the organism became
flattened thin
 external structure only seen so we could not
study about their internal struture

17.  Plant part compress by sediments and give
an imprint of it

21.  Organic material becomes a fossil due to
replacement of the original material and
filling of the original pore spaces with
minerals

24.  Cast : Mineral gradually enter in to the cavity
and become solidify
 Molds : External preserved surface where
sediments are enter and form cast

27.  Organism or plant part are dig up before they
complete their fossilization

29.  Sometimes inorganic material on the rock
appears to be a fossil

33.  Sometime due to tectonic movements or
other geological upheaval fossils redeposit in
to young sediments

35.  Infiltration of plant debris minerals salts in
swamps and conversation of debris in to coal

37.  Tree resin