Jellyfish Have Been Alive for Over 600 Million Years
“A jellyfish has been alive for over 600 million years , making it older than dinosaurs.”
Summary
The jellyfish lineage first appeared in the Cambrian period, more than 500 million years ago, with some estimates extending to around 600–700 million years, which is well before the first dinosaurs emerged. While no single jellyfish lives that long, the group as a whole is indeed older than dinosaurs.
Sources 59 searched
- World’s oldest jellyfish might have swallowed prey whole | Science | AAAS
However, soft-bodied creatures such as jellyfish are remarkably well preserved in a few places around the world, Moysiuk says, including in the Burgess Shale in British Columbia. These famous fossil beds date back to the Cambrian Explosion more than 500 million years ago, when a huge variety of animals emerged onto the evolutionary scene.
- Jellyfish predate dinosaurs. How have they survived so long? | Smithsonian Ocean
Gelatinous drifters that move in a mesmerizing way, jellyfish are beautiful creatures. But take a closer look and you'll see there's more to these creatures than a pretty picture. Some shoot a deadly venom, while others produce a luminescent glow that sparked one of the most important biological ...
- Jellyfish and Comb Jellies - Smithsonian Ocean Portal
The oldest ancestors of modern day jellies lived at least 500 million years ago, and maybe as long as 700 million years ago. That makes jellyfish three-times as old as the first dinosaurs!
- Fossil Jellyfish | Smithsonian Ocean
How long have jellyfish lived in the ocean? This jellyfish fossil is from the Cambrian period, more than 500 million years ago. It was found buried in Utah—an area that used to be underwater, covered by the ocean.
- Molecular Paleontology | Coastal and Marine Sciences Institute
Based on the genetic detective work, Gold and Sierra found that around 600 million years ago a rapid diversification in the cell type occurred, evolving to be specific to distinct feeding styles and prey.
- Ctenophore: Scientists identify jellyfish-like animal as the oldest living creature on Earth - BBC Newsround
A new study involving researchers from the University of California, Berkeley, has discovered that comb jellies have been around longer than sponges, which date back about 600 million years.
- 505-Million-Year-Old Jellyfish Fossils May Be the Oldest Ever Found - The New York Times
But evidence of their rise is scarce. Most fossils from before the Cambrian period are either microscopic or little more than faint imprints, making it difficult to infer how these ancestral jellies lived.
- Are Jellyfish Older Than Dinosaurs? And 7 Other Fascinating Facts
Jellyfish have been around for more than 500 million years. That means they appeared more than 250 million years before the first dinosaurs. However, because jellyfish are soft-bodied and almost all water, jellyfish fossils are incredibly rare.
- Jellyfish - Wikipedia
The oldest unambiguous fossil of a free-swimming medusa is Burgessomedusa from the mid-Cambrian Burgess Shale of Canada, which is likely either a stem group of box jellyfish (Cubozoa) or Acraspeda (the clade including Staurozoa, Cubozoa, and Scyphozoa). Other claimed records from the Cambrian of China and Utah in the United States are uncertain, and possibly represent ctenophores instead.
This fact check is free and donation-based. $1 powers ~30 fact-checks.
