I start by saying thank you for takeing your time to read . Heres just some random facts,Astrophysics suggests that the big bang theory was
13,700,000,000 years ago, resulted in Earths formation.formation of the moon: Theia was planet sized object that near enough shared the same orbit as
Earth. Earth an thia had a collision about 4.5 billion years ago, creating the Moon.which helped conditons for life.
THEIA : Titan goddess of sight, goddess who gave gold,and silver there beauty.Theia had three children-( Eos- Dawn)(Helios- SunSelene- Moon). sorry
just thought it was fiting lol.
(Carbon dating can be wrong) The Earth could easily be older,due to rocks being continuously recycled they get destroyed by the process of plate
tectonics, also melting,erosion and recrystallization.We have almost no record of the crust before the formation of continents began. My time scales i
use losely and maybe off by a fraction, for that i apologise, but like i stated so could the mainstream time scales based on carbon dating: )
Hadean: Science is unaware if life could of existed during the Hadean time it is thought to be to inhospitable of an environment but if life can be
found on mars then surly life could have lived.
Archaean: Is believed to have harbored life in the ocean. First life is believed to be the Eubacteria (i.e., bacteria)and prokarytic which was
single celled life.
Proterozoic: Photosynthetic Eubacteria are contributors to the buildup of oxygen paramount to the further evolution of life,more bacteria and archaean
microbes have formed able to tolerate hostile environments,
Cambrian: (544 - 505 million years ago)
Climate: Cold, but climate in all parts of the Earth got warmer, It made the oceans a good place for many species to live and florish.The land masses
were still forming. They were primarilary barren rocky formations. there was an explosion of life, majorIty were in the water.
Terra firma life : had alomost no plant or animal lifeforms. In Cambrian Period
Ocean Lifeforms: Trilobite,Pikaia,Mollusks,worms, sponges and echinoderms etc
Mass Extinction: Approaching glaciers lowered the temperature of the ocean's where majority of life lived. Changes in the temperature and amount of
oxygen in the water meant the demise of species who could not adapt.
Ordovician: (505 - 440 million years ago)
Gondwana: Moved towards the South Pole then covered the pole at the end of the ordovician period. A lot of Gondwana was covered in water during this
period.land areas were sporadically covered with water.Toward the end of this Period more of the land was out of the water.This was due to climate.
Climate: Fairly warm
Ocean Lifeforms: Life Primarily found underwater, cephalopods, trilobites survied Cambrian period. New lifeforms, Brachiopods, Crinoids, Sponges,
corals and fish.
Terra firma life : Plants such as mosses, bryophytes fungi and lichen.
Mass Ectinction: Gondwana supercontinent came to a halt on the South Pole,the cold formed glaciers this caused the sea level to drop and climate to
change. These changes caused extinction at the end of this Period.
Silurian : (440 - 410 million years ago )
Gondwana: is still situated at the southern hemisphere,but it has expanded from the Equator, to the South Pole.The warmer climate caused the icey
glaciers to thaw and the oceans to rise.Land too was rising and mountings were forming due to continental plates.oceans moved further away from
coasts, ocean water evaporated from shallow areas. this left salt deposits. so Aquatic Plants had to adapt to life on Terra firma.
Climate: Warmer than previous periods.
Ocean Lifeforms: shallow warm seas produced variations of the surviving marine life from last periods such as nautiloids, brachiopods,
bryozoans,Cephalopods, crinoids and basic fish. New lifeforms such as Sea Scorpions and early insects, a large variety of fish were forming, to many
Terra firma life : Variety of Cooksonias , Mosses, plants and lichen
Mass Ectinction: Would happen at the end of Euramerica period.
So here is were i ask could THE REPTILIANS of started there evolution here in Silurian period and evolved further though the Euramerica period.
Devonian (410 - 360 million years ago)
Devonian period referd as the age of Fishes,it also heralded important changes to the land mass as a collision occured. Creating a large continent
named Euramerica and the forming of Mountain Ranges. The other large land Gondwana remained in close proximity to the new Euramerica. The two were
slowly heading towards each other throughout the Devonian Period. Evidently they collided and formed the supercontinent named Pangea after the
Climate: warm,huge swings of floods and drought effecting lakes
Ocean Lifeforms: Placoderms,Ostracoderms,Dunkleosteus, thousands of species of fish and even sharks-Chondricthyes,many Invertebrates-ammonite, it is
said that here is were Eusthenopteron was one of the first fishes to venture out onto land to look for other pounds due to droughts
Osteichthyes-became amphibians,coelacanth, Dipterus-could also breath air,sponges and corals built largest reefs in the world
Terra firma life : tetrapod,four-footed vertebrate plants formed seeds,Ferns,trees, insects,spiders,primitive vertebrate,
Mass Ectinction:. . Due to movement of Gondwana to south pole.It hit water habits much more than land. The sponges and corals were most affected by
I all so believe that theses race left earth due to the mass extinction just before the end of the Devonian
I would like help on seeing if any other users could help grow this thoery thanks again for sticking with the long read : )
edit on 4/9/2011 by indisputable because: (no reason given)