Transcript
MILLIONS YEARS AGO
THE EARTH DIDN'T LOOK AS TODAY
TERRIBLE STORMS, VOLCANIC EXPLOSSIONS, METEOR IMPACTS HURT EARTH
After millions years of volcanic eruptionsAfter millions years of volcanic eruptions
While the lava was changing the earth's face
... and huge steam clouds was covering the sky... and huge steam clouds was covering the sky
ON THE OCEAN FLOORON THE OCEAN FLOOR
IN SMALL PONDS...IN SMALL PONDS...
LIFE WAS LIFE WAS BORNING BORNING !!
STROMATOLITES ARE THE FIRST FOSSIL THAT AGESTROMATOLITES ARE THE FIRST FOSSIL THAT AGE
Stromatolites are commonly thought to have been formed by cementation Stromatolites are commonly thought to have been formed by cementation of sedimentary grains by microorganisms, especially cyanobacteria of sedimentary grains by microorganisms, especially cyanobacteria
(formerly known as blue-green algae)(formerly known as blue-green algae) Shark Bay (Australia)Shark Bay (Australia)
570 MILLIONS YEARS AGO
The Ediacaran fauna are ancient lifeforms, of the Ediacaran Period, that represent the earliest known complex multicellular organisms.
Trilobite precursor
Coralprecursor Jellyfish precursor
But, a rough ice age fell on EarthBut, a rough ice age fell on Earth
Many millions years after, life was coming back to born
540 MILLIONS YEARS AGO
EARTH HAS OTHER CONTINENT GRUPSEARTH HAS OTHER CONTINENT GRUPS
AND VERY STRANGE ANIMALS LIVED IN THE SEA
THE CAMBRIAN EXPLOSIONDESCRIBESTHE MAJOR
DIVERSIFICATION OF ORGANISMS.
IT IS A CHALlENGE TO
EVOLUTION
DURING THE CAMBRIAN A LOT OF LIFE MODELS WAS TRYING, BUT SOME OFF THEM VANISH OF THE FACE EARTH
ANOMALOCARIS: ARTHROPODA. IT WAS A GIGANTIC CREATURE, NEARBY 2 METER.
THE BIGGEST PREDATOR BY THE AGE
HALLUCIGENIA. ONICOPHORAN?ITS NAME IS AS ITS BODY, A HALLUCINATION
OPABINIA. IT LIVED ON TOP OF THE SOFT SEDIMENT ON THE
SEABED
PIKAIA. CHORDATE. PERHAPS IT IS THE OLDEST KNOWN ANCESTOR OF MODERN VERTEBRATES, INCLUDED THE HUMANS
MARELLA. ARTHROPODAIT FED ON ORGANIC PARTICLES
AND IT WAS CAPABLE OF WALKING AND SWIMMING
WIWAXIA: MOLLUSK OR ANELID ?WIWAXIA: MOLLUSK OR ANELID ?
PERSPICARIS WAS A PERSPICARIS WAS A STRENGE BIVALVED STRENGE BIVALVED ARTHROPODARTHROPOD
AYSHEAIA AYSHEAIA ONICOPHORA. ONICOPHORA. VELVET WARMVELVET WARM
IT LIVED IT LIVED WITHIN WITHIN
SPONGE SPONGE COLONIES AND COLONIES AND
MAY HAVE MAY HAVE PROTECTED PROTECTED ITSELF FROM ITSELF FROM PREDATORSPREDATORS
HAPLOPHRENTIS. MOLLUSK? THEY ARE ENIGMATIC ANIMALS WITH SMALL CONICAL SHELLS. THEY ARE CARNIVORES
NECTORASIS
VUAXIA
POLYCHAETEWORM
PIRANIA
OLENELLUS
DYCTIOPHICUS
CRINOIDEUSBURGESSIA
BRANCHIOCHARIS
BRACHIOPODOS
Burgess Shale FossilsBurgess Shale Fossils
500 MILLIONS YEARS AGO
THE LIFE WENT OUT THE THE LIFE WENT OUT THE WATER FOR CONQUER EARTHWATER FOR CONQUER EARTH
TO BE CONTINUED ...
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