A geologist in Canada may have discovered fossils of ancient sponges dating back 890 million years, making the potential discovery 350 million years older than the oldest undisputed sponge fossils. The fossilized structures found in rock samples potentially show sponges that existed in underwater reefs millions of years ago. The findings may represent the oldest animal fossils ever discovered, Laurentian University professor Elizabeth Turner described in an article published Wednesday in the journal “Nature.”Scientists have previously estimated that sponges existed before more complicated creatures over 540 million years ago. However, there’s a lack of fossilized sponges discovered by scientists that would …
