Mais antigo:
https://www.usatoday.com/story/news/nation-now/2018/09/21/oldest-known-animal-fossil-dickinsonia-revealed-scientists/1377436002/
Citando:
"The Dickinsonia, an animal with an oval body that could grow to more than 4 feet in length, lived 558 million years ago, according to research published Friday in the journal Science. The now-extinct animal probably lived in warm shallow seas possibly alongside other squishy Ediacaran critters, National Geographic reports.
For more than 75 years, scientists have been fighting over what a Dickinsonia really was, said Australian National University associate professor Jochen Brocks, who was involved in the research. Was it an amoeba or an animal? Evolution gone wrong? Or maybe a plant?"
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