A 515-million-year-old fossil once thought to be the earliest known animal from a coral-like group called the bryozoans might actually be a seaweed
Protomelission gatehousei,
unearthed in Australia and China, as a bryozoan – suggesting these animals didn’t arrive on the scene much later than other groups after all.-like fossils from Kunming in China, which underwent a form of preservation that maintained their soft tissues. The team found clumping formations of individual tube-like structures in a honeycomb pattern – which can occur in both plants and animals. But they saw no tentacles nor any regularly shaped holes for tentacles to pass through – the telltale signs in later bryozoan fossils, says Smith. Instead, the researchers noticed long projections emerging from the honeycomb that look like flanges, structures that are typical of certain kinds of green algae.
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