The earliest accepted sponge fossils date to the Cambrian Period, about 535 million years ago. They consist of spicules, little rods of quartz or calcite that make up the skeletons of many present ...

More than 514 million years ago, long before dinosaurs roamed Earth, sponge-like creatures called archaeocyathids were ...

A sponge-like fossil dating back approximately 890 million years may be the oldest prehistoric animal on Earth.

Researchers have unearthed a sea sponge fossil dating back 550 million years, revealing crucial clues... advertisement. Techno-Science. 🧬 This fossil resolves an evolutionary paradox.

The mesh-like fossil would push back the oldest known animal on Earth by more than 300 million years. But like many claims of very old life, the study is kicking up lively debate.

Fossils found in rugged mountainous terrain in Canada's Northwest Territories may give a glimpse at the humble dawn of animal life on Earth - sea sponges that inhabited primordial reefs built by ...

This Sponge Fossil May Be the Earliest Record of Animal Life The 890-million-year-old relic predates periods of extreme cold and the planet’s second oxygenation spike. Shi En Kim - Reporter.

But according to a paper published today in Nature 1, sponge fossils from northwestern Canada could be 350 million years older, significantly pushing back the date of Earth’s earliest-known animals.

The fossils are more than 350 million years older than the next-oldest sponge fossils. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. That ...

Critics challenged a study’s claim that a netlike structure found in rocks in a Canadian mountain range could be an 890-million-year-old sponge fossil.

A geologist has discovered rocks in Canada that may contain sponge fossils dating back 890 million years — perhaps the earliest fossil record of animal life on Earth.

Geobiologists reported a 550 million-year-old sea sponge that had been missing from the fossil record. The discovery sheds new light on a conundrum that has stumped zoologists and paleontologists ...