When they pulverized the fossils to analyze the bacteria molecules, the researchers distilled the colors to find a brilliant pink.
The bright pink pigments are more than half-a-billion years older than earlier pigment discoveries.
Scientists from Australia, Japan and the U.S. discovered the prehistoric shades after crushing down rocks extracted from deep beneath the Sahara desert, in the Taoudeni basin in Mauritania, West Africa.
"These pink pigments, their exact structure and composition tells us there was an efficient energy food source missing at the base of the food web", he said.
Nur Gueneli says that these pigments were taken from marine black shales in the Taoudeni Basin in Mauritania, West Africa.
In the 1960s there were reports of similar fossils uncovered from rocks up to several billion years old, but these days they've generally been dismissed as unreliable.
You can read all about the findings in their study here. The pigments were extracted from rocks deep under the Sahara Desert in Africa. The sample from the Sahara may be evidence that the cyanobacteria were the dominant lifeform on Earth over a billion years ago and caused an evolutionary bottleneck.
The color of the fossils ranges from blood red to deep purple in concentrated form, and bright pink when diluted with water.
That means nothing was swimming around, chomping down on morsels of sunbaking cyanobacteria.
The size of the cyanobacteria, however, was so minute that they were not sufficient for larger organisms such as animals.
This could help to explain why animals did not exist at the time, according to the researchers.
Earth is approximately 4 billion years old.
It was previously thought that the lack of oxygen may have prevented larger creatures to thrive shortly after life started on Earth.
The evolution of larger, active organisms was likely held back by a limited supply of larger food particles, such as algae, at this time. "[Gueneli] came running into my office and said, 'look at this, ' and she had this bright pink stuff..." Brocks believes oceans dominated by cyanobacteria may be the culprit.
But when the ocean disappeared around 650 million years ago, algae, which is a much richer food source for bigger organisms, was able to spread faster.
Cars are decorated with red-and-white chequerboard flags and football jerseys are being sold in large numbers. It was a very tough game against 50,000 people at the stadium. "We have proved we are a football nation".
Croatia are wary of the threat posed by England captain Harry Kane , who is the tournament's leading scorer with six goals so far. Seriously it's our time - LETS GO ENGLAND '. "It has been a few years since he said what he said about me.
The watchdog also announced plans to a bring a criminal action against Cambridge Analytica's defunct parent company SCL Elections. The office finds that Facebook lacked the privacy protections necessary to catch Cambridge Analytica before it was too late.
'The one thing I was insecure about she has. "She didn't get those from me, she got those from her dad [ Travis Scott]". I just didn't feel desirable or pretty. "I feel like I have fake abs now, it's just like, genetics".
Meghan stunned during the meeting at President Higgins' official Aras an Uactharain residence with an off-the-shoulder grey dress. This will include a Gaelic sports festival at Croke Park, the home of the Gaelic Athletic Association.
Ben Tollitt, who appears to be a Liverpool supporter, could be seen mouthing an insult at Karius after he dropped the clanger. He said: "No one likes that goal but, if we talk about that, then the second goal is Milly's [James Milner's] fault".
Bureau of Consular Affairs confirmed the death and released the victim's name, Tatiana Mirutenko, in a statement. Mexican authorities say the 47-year-old man who was being targeted was injured but survived.
Of course, let's not forget the official advice, and that is to breastfeed your child for his six months of life - exclusively. Other babies need a little longer to get used to new textures so may prefer smooth or blended foods on a spoon at first.
At first, a flight attendant told her - politely, Burt wrote - that the dog had to stay in her carrier under the seat. When Darcy continued her abnormal breathing, one flight attendant brought over an oxygen tank and a breathing mask.
The EU said the court's decision "threatens fundamental freedoms, a free media and the public's right to information in Myanmar". Reuters subsequently published an in-depth story on the massacre, which drew on the reporting of Ko Wa Lone and Ko Kyaw Soe Oo.
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