A new fossilized, cigar-shaped creature that lived about 520 million years ago has been unearthed in Morocco. Helicocystis moroccoensis, has “characteristics that place it as the most primitive echinoderm that has fivefold symmetry,” said study co-author Andrew Smith, a paleontologist at the Natural History Museum in London, referring to the group of animals that includes starfish and sea urchins. Modern echinoderms typically have five-point symmetry, such as the five arms of the starfish or the sand dollar’s distinctive pattern. The primitive sea creature, described today (June 25) in the journal Proceedings of the Royal Society B, could even change its body shape from slender to stumpy. Researchers say it is a transitional animal that could help explain how early echinoderms evolved their unique body plans, Smith said.
- Scientists find cancer in million-year-old fossil
- 3.6 million-year-old footprints suggest early human ancestors were excellent walkers
- Beetle Trapped in 99-Million-Year-Old Amber Was an Early Pollinator
- 30-Million-Year-Old Species Worried It Doesn’t Have Another Evolution In It
- Scientists Find 100 Million-Year-Old, Nearly Complete Baby Bird Trapped in Amber
- Peering into Little Foot's 3.67-million-year-old brain
- Meet Dracoraptor, the 200 Million-Year-Old Dinosaur Just Discovered in Wales
- Tetrapods pushed back 18 million years
- New Plastic Surgery Technique Makes 40-Year-Old Women Look Like Really-Weird-Looking 38-Year-Olds
- VA To Improve Veterans’ Health Care With New $500 Million Waiting Room
Bizarre 500-Million-Year-Old Creature Unearthed have 206 words, post on at June 29, 2013. This is cached page on VietMaz. If you want remove this page, please contact us.