Science-Technology
See other Science-Technology Articles
Title: Fossils of Earliest Animal Life Possibly Discovered
Source:
[None]
URL Source: http://www.livescience.com/animals/ ... fossils-discovered-100817.html
Published: Aug 17, 2010
Author: Jeanna Bryner
Post Date: 2010-08-17 22:42:53 by Skip Intro
Keywords: None
Views: 15405
Comments: 26
Fossils of Earliest Animal Life Possibly Discovered Fossils of what could be the oldest animal bodies have been discovered in Australia, pushing back the clock on when animal life first appeared on Earth to at least 70 million years earlier than previously thought. The results suggest that primitive sponge-like creatures lived in ocean reefs about 650 million years ago. Digital images of the fossils suggest the animals were about a centimeter in size (the width of your small fingertip) and had irregularly shaped bodies with a network of internal canals. The shelly fossils, found beneath a 635 million-year-old glacial deposit in South Australia, represent the earliest evidence of animal body forms in the current fossil record. Previously, the oldest known fossils of hard-bodied animals were from two reef-dwelling organisms that lived around 550 million years ago. Researchers have identified controversial fossils of soft-bodied animals that date to the latter part of the Ediacaran period between 577 and 542 million years ago. The research was funded by the National Science Foundation's (NSF) Division of Earth Sciences. Surpise finding Princeton University geoscientists Adam Maloof and Catherine Rose spotted the fossils while working on a project focused on the severe ice age that marked the end of the Cryogenian period 635 million years ago. They spotted the fossils in the crevices between stromatolites, which are structures that form in oceans where the environment is too harsh for plants to grow and so cyanobacteria take over to form these microbial mats. Over time sediment piles on top, the microbes move back up to the surface and the cycle repeats until you get this sediment pile topped by bacteria. "We're guessing the microbial mats made a reef-like substrate, and these sponges were probably growing on top, taking advantage of the reef height," Maloof told LiveScience. Though the scientists aren't positive it's an animal, "that's our best guess," Maloof said. The organism is relatively large, so it likely wasn't something made by bacteria; it's asymmetric, suggesting it wasn't a higher animal like a worm; and it sported relatively large tunnels or canals, which resemble those found in sponges today. Algae have tubes that are much smaller than those in this fossil organism. Today's sponges are equipped with tiny tubes that suck in seawater, which contains carbon they can eat. "And then to get rid of the water it's exhaled through the sponge and comes out of a series of larger tubes," Maloof said. The fossils showed this series of tubes that seem to be the exhaling type. Snowball Earth Their findings, published in the Aug. 17 issue of the journal Nature Geoscience, provide the first direct evidence that animal life existed before – and probably survived – the severe "snowball Earth" event that left much of the globe covered in ice at the end of the Cryogenian. "We were accustomed to finding rocks with embedded mud chips, and at first this is what we thought we were seeing," Maloof said. "But then we noticed these repeated shapes that we were finding everywhere – wishbones, rings, perforated slabs and anvils. We realized we had stumbled upon some sort of organism, and we decided to analyze the fossils." Maloof added, "No one was expecting that we would find animals that lived before the ice age, and since animals probably did not evolve twice, we are suddenly confronted with the question of how a relative of these reef-dwelling animals survived the 'snowball Earth.'" Making 3-D images Analyzing the fossils turned out to be easier said than done. The ancient skeletal fossils are made not of bone, but of calcite, which is the same material that makes up the rock matrix in which they are embedded. Therefore X-rays, which distinguish between different densities of bones, couldn't be used to look at the newly discovered fossils. Maloof, Rose and their collaborators teamed up with professionals at Situ Studio, a Brooklyn-based design and digital fabrication studio, to create three-dimensional digital models of two individual fossils that were embedded in the surrounding rock. When they began the digital reconstruction process, the shape of some of the two-dimensional slices made the researchers suspect they might be dealing with the previously discovered Namacalathus, a goblet-shaped creature featuring a long body stalk topped with a hollow ball. But their model revealed the creatures looked nothing like Namacalathus, but were rather sponges. Previously, the oldest known and undisputed fossilized sponges date to around 520 million years old. In future research, Maloof and his colleagues intend to automate the three-dimensional digital reconstruction technique to increase the speed of the process.
Post Comment Private Reply Ignore Thread
Top • Page Up • Full Thread • Page Down • Bottom/Latest
#1. To: Skip Intro (#0)
Wait, I thought the earth was only 5,000 years old. How can this be? /aka loser
"Lets [sic] rent a room." ~ Jethro Tull to Rotara
I dunno about this. I heard that the earth is so young that it's still wet behind the ears, and the Grand Canyon has barely had time to even dry out in the couple of thousand years since it was formed from mud.
"See in my line of work, you got to keep repeating things over and over and over again for the truth to sink in, to kind of catapult the propaganda." --- George W. Bush (Rochester NY, 5-24-2005)
Please, it's 6000 years old. Let's be accurate.
"How many confirmed NV Mig kills do YOU have general? I only have three." - Mad Dog, the syphilitic psychopath
Obviously, Satan has led these people astray. Boy are they in for a big surprise!
"How many confirmed NV Mig kills do YOU have general? I only have three." - Mad Dog, the syphilitic psychopath
These guys will dig up anything if there's a big fat federal grant attached to it...
Spoken like a true hillbilly.
"How many confirmed NV Mig kills do YOU have general? I only have three." - Mad Dog, the syphilitic psychopath
Obviously, Satan has led these people astray. Boy are they in for a big surprise! Your mainstream science is a religion unto itself, Radio Carbon dating actually works within reason for dates inside 20,000 yrs I've posted several times here at LF about Expanded Earth Theory and Electric Universe, Once the viewer/thinker grasps how obvious Expanded Earth theory is,....the next question is why the old stunted theory of Continental drift is upheld still. There is a crisis occuring on many levels of authoritarian control. with the above,...there is of course another answer/process occuring,
You do know there are other dating methods, right?
"How many confirmed NV Mig kills do YOU have general? I only have three." - Mad Dog, the syphilitic psychopath
What results. Oh circular reasoning. Such intellectual light weights.
/aka loser Where is the evidence in this article for the age of the earth. I didn't see any. In fact I have never seen any. Have you? If so what? Oh somebody told you that and they had a white lab coat on and that made them look superior to you in your eyes. You are becoming a joke.
You know they are based on each other right? You know that they are IMPOSSIBLE to prove right?
Ignorance fits you well, Stone. Never change.
"How many confirmed NV Mig kills do YOU have general? I only have three." - Mad Dog, the syphilitic psychopath
No, they are not based on each other. Why not show me why it's impossible to prove?
"How many confirmed NV Mig kills do YOU have general? I only have three." - Mad Dog, the syphilitic psychopath
Don't be STUPID! Show me some evidence for the age of the earth that isn't based on presumptions and circular reasoning. You can't. Until then shut up about it.
It is impossible to prove becasue the age in unknown. It is a guess. A stupid one at that that is based on assumptions by people who think they are wise but are indeed fools. You're a fool.
Yes,....but Isotopic decay rates are* influenced by Stellar energy wave form, depending on what occurs in our galactic neighbourhood, They will eventually find some common age/eon anchor points.
And your knowledge of the age of the earth is based on what, exactly?
"How many confirmed NV Mig kills do YOU have general? I only have three." - Mad Dog, the syphilitic psychopath
Is it impossible to prove how far away the sun is? How about the nearest galaxy?
"How many confirmed NV Mig kills do YOU have general? I only have three." - Mad Dog, the syphilitic psychopath
Of course not. That is easily proveable. It is not even close to the same category as dating of the earth. You never offer any proof.
How about the age of the sun? Is that provable? What about stars and galaxies that are more than 10,000 light years away? Can we know their ages?
"How many confirmed NV Mig kills do YOU have general? I only have three." - Mad Dog, the syphilitic psychopath
If the earth is millions of years old. How big would the sun have been back then? It would have been so big that the earth would now be charcoal. What is funny is that you actually believe you are smart. You are a very gullible person.
It would have been about the same size. What makes you think otherwise?
"How many confirmed NV Mig kills do YOU have general? I only have three." - Mad Dog, the syphilitic psychopath
Because all that gas burning for millions of years. There would have had to be more of it. Lots more of it millions of years ago. Or billions.
The proving part in any new understanding which challenges the existing is difficult. he sun's photosphere is often mistakenly referred to as the surface of the sun. In reality however, the sun's photosphere is only a "liquid-like" plasma layer made of neon that covers the actual surface of the sun. That visible layer we see with our eyes is composed of penumbral filaments that are several hundred kilometers deep. This visible neon plasma layer that we call the photosphere, and a thicker, more dense atmospheric layer composed of silicon plasma, entirely covers the actual rocky, calcium ferrite surface layer of the sun. The visible photosphere covers the actual surface of the sun, much as the earth's oceans cover most of the surface of the earth. In this case the sun's photosphere is very bright and we cannot see the darker, more rigid surface features below the photosphere without the aid of satellite technology.[end] Parrot:....calcium ferrite surface,
Yes, there would have been more hydrogen then. When "burned", it changes to helium. The size of the sun would not significantly change. That happens at the end of the sun's life when it turns into a red giant.
"How many confirmed NV Mig kills do YOU have general? I only have three." - Mad Dog, the syphilitic psychopath
Jupiter is axial at 3 degree's,....Venus is 180 of that,and most likely a fission/expulsion birth from Jupiter which was in a different phase state, as Gas Giants,...are actually Brown Dwarf stars with the power band turned down. Amp them up via the Gallactic Birkeland currents,...and they will swell up into Brown dwarf phase state,...and be under emense ellectrical stress,...which is compensated for,...by fission/expulsion of mass hence the whyfore of both Saturn and Jupiters many moons. By the way,....Jupiter has several moons that are retrograde. probably expulsion material from Venus's birth which could not accelerate away in sufficient momentum to escape the gravity dominion. Eath and Mars have the 20 something axial tilt,....which points to them both being born from Saturn in arcadia,....with that orbital lock broken,...and both wandering in the expanse until captured by our Sun A third planet which exploded [Vanflandern exploded Planet hyp],...may also have been a 20 something saturn world,.....its remnants now found in the belt of debris between Mars and Jupiter. Interesting stuff... Bookmarked for later consideration.
Democrats vs Republicans: The false paradigm of American politics People continue to believe in fallacies like the left-right paradigm because they are inclined for some reason- to make decisions based on their feelings, rather than objective logic or rational thought unfortunately.
#2. To: Skip Intro (#0)
#3. To: Fred Mertz (#1)
Wait, I thought the earth was only 5,000 years old. How can this be?
#4. To: mininggold (#2)
I dunno about this. I heard that the earth is so young that it's still wet behind the ears, and the Grand Canyon has barely had time to even dry out in the couple of thousand years since it was formed from mud.
#5. To: Fred Mertz (#1)
Wait, I thought the earth was only 5,000 years old. How can this be?
#6. To: Murron (#5)
These guys will dig up anything if there's a big fat federal grant attached to it...
#7. To: Skip Intro (#3)
Please, it's 6000 years old. Let's be accurate.
and its completely BOT and owned like mainstream media and Congress.
its the same with science about the cosmos,
Electric Universe is handing them their hat and showing them the door,..its a slaughter, but you won't hear much from NASA/JPL and their brokerage houses like Space.com
The church is reeling ,...as its BS has finally caught up with it.
Moo si lums have beheaded way to many,
The Jewish Messiah/Jerusalem thingy is a fraud
Historians focused on revision know King David and Solomon never existed
Ahab period and Cult worship from the Levant/Lebanon,....actually has some teeth to it,
as idols with boobies and such which follow the sex fertility cult of the day are found everywhere's in the ground,...circa that period,....in northern/central Israel.
the calm under control person adjusts to that,
the hair on fire crowd go suicide themselves or turn violent on others,
Like Bilge Rat,yukon and Grand Tazer the Homeless.
#8. To: Parrot with speed dial (#7)
Radio Carbon dating actually works within reason for dates inside 20,000 yrs
#9. To: Skip Intro (#0)
The results suggest that primitive sponge-like creatures lived in ocean reefs about 650 million years ago
#10. To: Fred Mertz (#1)
Wait, I thought the earth was only 5,000 years old. How can this be?
#11. To: Skip Intro (#8)
You do know there are other dating methods, right?
#12. To: A K A Stone (#10)
#13. To: A K A Stone (#11)
ou know they are based on each other right? You know that they are IMPOSSIBLE to prove right?
#14. To: Skip Intro (#12)
#15. To: Skip Intro (#13)
#16. To: Skip Intro (#8)
You do know there are other dating methods, right?
and wave form synergistic with the Earth,
as the Earth is a Faraday disc/dipole,.....with a Plasma magnetosphere.
and what orbital divergence has occured in our solar system
The Earths repeated expansion sequences,..be they gradual or catastrophic like
these are all manner of EM wave generation events and outflow buffer from celestial causality.
basically,....you do not get any uniformity rate.
any dating mechanism using Uniformity in its black board scribble will be wrong.
like the few Biblical dates/kings named.... which actually are within ballpark of real history.
There is a growing understanding that our solar system's planetary and gas giant AU distance sets from our Sun have been different in eons past,
with Venus and her non elliptical and retrograde rotation orbit
margining recent capture,
Venus is as they say,...just outta the oven.
retrograde rotation,...at 177 degree's
Jupiter is axial at 3 degree's,....Venus is 180 of that,and most likely a fission/expulsion birth from Jupiter which was in a different phase state,
as Gas Giants,...are actually Brown Dwarf stars with the power band turned down.
Amp them up via the Gallactic Birkeland currents,...and they will swell up into Brown dwarf phase state,...and be under emense ellectrical stress,...which is compensated for,...by fission/expulsion of mass
hence the whyfore of both Saturn and Jupiters many moons.
By the way,....Jupiter has several moons that are retrograde.
probably expulsion material from Venus's birth which could not accelerate away in sufficient momentum to escape the gravity dominion. Eath and Mars have the 20 something axial tilt,....which points to them both being born from Saturn in arcadia,....with that orbital lock broken,...and both wandering in the expanse until captured by our Sun
A third planet which exploded [Vanflandern exploded Planet hyp],...may also have been a 20 something saturn world,.....its remnants now found in the belt of debris between Mars and Jupiter.
#17. To: A K A Stone (#14)
#18. To: A K A Stone (#15)
It is impossible to prove becasue the age in unknown.
#19. To: Skip Intro (#18)
Is it impossible to prove how far away the sun is? How about the nearest galaxy?
#20. To: A K A Stone (#19)
#21. To: Skip Intro (#20)
How about the age of the sun?
#22. To: A K A Stone (#21)
If the earth is millions of years old. How big would the sun have been back then?
#23. To: Skip Intro (#22)
It would have been about the same size. What makes you think otherwise?
#24. To: Skip Intro, A K A Stone (#18)
suffice to say,....you reach a point of clarity that said previous theory's for solar system formation,...and planetary configuration [failed continental drift theory],...are wrong,...epic fail
so now you try to frame a new understanding.
The Sun is not atomic,....its electric,...all that BS shoved our way is epic fail.,
but the true science at work does have real support.
decades of scientific support,...even NASA's satellites confirm the Sun is electric
but they don't brag about that,...as that would reveal their magnificient error.
evidence:
This is an example of a "running difference" image of the sun's surface revealed by the TRACE satellite using its 171 angstrom filter. This filter is specifically sensitive to iron ion (FE IX/X) emissions and records a C3.3 flare and mass ejection in AR 9143 in 171Å on 28 Aug. 2000. The flare activity is caused by increased electrical activity as fast moving plasma sweeps over surface ridges, resulting in increased electrical activity on the windward side of the mountain ranges.
ya...its an iron plate with 2 layers of plasma flowing/interacting.
the Sun has an equitorial Plasma torus which surrounds it,...
this discharges back to the hard surface and pushes thru the Plasma,...revealing the black area's[the surface of the sun] which we see in Sunspots.
Holoscience.com has many articles about this electrical process and real science evidence to back it,...not mumbo jumbo.
#25. To: A K A Stone (#23)
Because all that gas burning for millions of years. There would have had to be more of it.
#26. To: Parrot with speed dial, capitalist eric (#16)
I've posted several times here at LF about Expanded Earth Theory and Electric Universe, Once the viewer/thinker grasps how obvious Expanded Earth theory is,....the next question is why the old stunted theory of Continental drift is upheld still. its the same with science about the cosmos, Electric Universe is handing them their hat and showing them the door,..its a slaughter, but you won't hear much from NASA/JPL and their brokerage houses like Space.com...
What paradigm? That is the type of response one would receive from the average voter in the United States today. It reflects the clandestine ignorance of the majority of the populace today. So the question becomes, why does the population continue to believe in the so called, left-right paradigm?
Top • Page Up • Full Thread • Page Down • Bottom/Latest
[Home] [Headlines] [Latest Articles] [Latest Comments] [Post] [Mail] [Sign-in] [Setup] [Help] [Register]