CAMBRIAN IS THE FIRST PERIOD OF PALEOZOIC ERA OF PHANEROZOIC EON . MARKING A NEW BEGINING IN THE HISTORY OF LIFE - BACTERIA ALGAE FUNGI WERE FLOURISHING -APART FROM THE SEA THEY WERE ENCRUSTING THE LAND ALSO MAINLY NEAR THE SHORES fIRST TIME ANIMALS LOOKING LIKE MODERN PHYLA WERE SEEN AND ALL SEAS WERE FULL OF NEW SPECIES MANY SO BEAUTIFUL AND COLOURFUL IT WAS ATREAT TO BEHOLD .

1. Trials & Tribulations Chapter 5 541 -485 Mya 1
Phanerozoic Eon Paleozoic Era
Exciting Cambrian
Cambrian world
Viyakaran – Wc – cc
Archaeocyatha – Ancient cups
.Reef builder Sponges – S.F.Fink – Wc - cc

2. Trials & tribulations 2
Dominant Arthropoda
Trilobites Opabinia
J.A.Elson - Wc – cc Nobu Tamura - Wc – cc
Cambroraster Anomalocaris
Junnn – Wc – cc Nobu Tamura – Wc – cc

3. Trials & Tribulations 3
A worm ! A vertebrate !
Hallucigenia Pikaia
M.D.Stefano-Muse – Wc- cc Nobu Tamura – Wc - cc
Protichnite tracks of Arthropods on beaches
Kennethcgass - Wc - cc

4. Trials & Tribulations Paleozoic Cambrian period 4
A New Era - a New Morning
Dawn of Animalia Oh ! What a dawn !
a wonderfultime ,sowing seeds of future plan !
full of excitingmovementsof new forms
which changedthe world for all ,once again
A period which scored maximumfirsts
in evolvingnew varietiesof life
startinga whole new seriesof lifeforms
an amazingperiodin historyof life
Archaeabacteria algaeand fungi
all were flourishingin the seas
some coveringintertidalflats
others probingfurtherinside
But inspite of it all
it is remembered moreas
the ‘ Age of Algae’ for they
bloomedmerrily in all the seas

5. Trials & Tribulations 5
Ediacaranbiotafaced extinction
as its grazingburrowinghabits
gradually depleted microbial mats
which carpetedthe floor of seas
The age of animals in the seas
began with a bang in a spree
the nonchordates dominated the scene
but chordatesalso made appearance
Amongnon chordatesalmost all
modern phyla were represented
Sponges,Comb jellies , jellies
Worms Arthropoda and Mollusca
Except spongeswhich had
evolved much earlier, all
others madetheir firstappearance
duringthisgrand period

6. Trials & Tribulations 6
Arthropoda emergedas leaders
and Trilobitesas their famousicons
but Anomalocaris gainednotorietyas
principle predators of thesetimes
The Chordatesmadethe firsthit
with Pikaia as the first chordate
and predecessorof fishesmakingmark
as the world’s firstvertebrate!
The animals madethe firstattempt
to try living lifeon the land
and startedprobingthe beaches
along intertidalareas on shores
The lead was taken by some
Arthropods and Molluscs
who have left behindimprints
of their trackson the beaches

7. Trials & tribulations 7
But trials of living beingsnever cease;
This beautifulperiod began with
extinctionof Ediacaran biotaand
ended with extinction of someothers.
Beautiful Combjellies
Beroe ovata Tortugas Red Bathocyroe
Christian Chirita - Wc. R,Criswold.NOAA.Wc. M Youngbluth – Wc
GFDL Public domain Public domain
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