In a “ so-called Lomagundi Event” when deep sea organic carbon might have suddenly increased between 2.3 and 2.1 billion years ago, ue to “biologically complex, oxygen-breathing animals.” From Colin Barras at New Scientist:
“The take-home message is that the oxygen level was high enough to support eukaryotic life and, by some arguments, maybe even animal life,” says Timothy Lyons at the University of California Riverside, who collaborates with Kipp and his colleagues, but was not involved in the new study.
So far, however, it appears there was little response: although there are hints that life became more complex during the Lomagundi Event, there is no really convincing evidence.
“But that doesn’t mean that those organisms didn’t exist,” says Kipp. “With palaeontology, it’s difficult to argue that absence of evidence is evidence of absence.” More.
True, absence of evidence is not evidence of absence. But it also isn’t science. Better yet:
Life’s apparent failure to become complex during the Lomagundi Event despite having the oxygen to do so is unsurprising, says Nicholas Butterfield at the University of Cambridge. Rather than a lack of oxygen delaying the appearance of animals until the past 800 million years, he thinks the reason was that it took evolution aeons to “work out” how to develop such biologically complex organisms.
So in order to support the claim (is it a claim?) that complex life existed back then, the researchers must not only treat “evolution” as a designer but as a bumbling one as well, taking a long time to “work out” the problem?
Well, another day, another pop science squiff. There is still no evidence that complex life was snuffed out globally after it was known to have got started.
See also: Complex life billion years earlier than thought?
Oldest known multicellulars are Ediacaran seaweed 555 mya (So far.)
Follow UD News at Twitter!