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Latest Cambrian Stories

Ediacaran Fossils A 'First-class Scientific Mystery'
2012-12-13 08:50:07

redOrbit Staff & Wire Reports - Your Universe Online Mysterious multicellular fossils believed to be ancient sea creatures may actually be some of the earliest land-dwelling organisms, according to a paper published online on Wednesday in the journal Nature. The controversial hypothesis has been fiercely criticized, with some paleontologists flatly rejecting the idea, but if true, the finding would push back life's transition from sea to land by as much as 100 million years or more....

Cambrian Explosion Trigger Found In Grand Canyon
2012-04-20 04:50:27

Millions of years ago, the creatures who would become the ancestors of all life, animals and humans alike, were simple, sometimes composed of individual cells. Evolution had been slow, with very little diversification. Then, as the waters began to shift and separate exposing new areas of land to air and daylight, this slow evolution began to explode into activity. Referred to as the Cambrian Explosion, this diversification is estimated to have taken several million years itself, breeding many...

Image 1 - Paleontologists Discover Oldest Organism With A Skeleton
2012-03-10 05:50:09

Paleontologists have discovered the oldest organism with a skeleton in Australia. The creature is called Coronacollina acula and is estimated to be between 550 and 560 million years old. Paleontologists estimate this animal is from the Ediacaran Period, before the diversification of organisms in the Cambrian Period. The study results appeared online February 14 in Geology. This important find could be the key to unlocking several questions about early life, evolution, and extinction....

2012-03-07 14:15:15

The Burgess Shale of British Columbia is arguably the most important fossil deposit in the world, providing an astounding record of the Cambrian "Explosion," the rapid flowering of complex life from single-celled ancestors. While most of the fossil record is comprised of shells, teeth and bones, the Burgess Shale preserves the softer bits–the eyes, guts, gills and other delicate structures–of animals belonging to Earth's earliest complex ecosystems a half a billion years ago. The...

Researchers Discover Ancient Tulip-like Creature In The Canadian Rockies
2012-01-20 07:49:18

A strange tulip-shaped creature discovered in half-a-billion-year-old rocks had a feeding system unlike any other animal, researchers reported this week. Officially named Siphusauctum gregarium, the fossils, unearthed from the Middle Cambrian Burgess Shale in the Canadian Rockies, reveal a peculiar creature roughly 7-8 inches long with a unique filter feeding system. The creature has a long stem with a bulbous cup-like structure -- similar to that of a tulip -- near the top that...

Image 1 - Researchers Track Half-billion Year Old Predator
2011-11-09 08:57:09

Researchers from the University of Saskatchewan and Royal Ontario Museum (ROM) have followed fossilized footprints to a multi-legged predator that ruled the seas of the Cambrian period about half a billion years ago. "Short of finding an animal at the end of its trackway, it's really very rare to be able to identify the producer so confidently," said Nicholas Minter, lead author of the article on the study, which appears in the latest issue of the Proceedings of the Royal Society B. Minter...

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2011-06-30 13:35:00

Paleontologists have discovered 515-million-year-old fossils which show that ancient animals had excellent vision and could even see in the dark, reports the Telegraph. An international team of scientists led by the South Australian Museum and the University of Adelaide found the fossils, which look like "squashed eyes from a recently swatted fly," on Kangaroo Island in South Australia. Researchers said the eyes have more than 3,000 lenses, making them more powerful than any known eye fossil...

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2011-05-26 06:20:00

Ancient sea creatures, that were the largest predators for millions of years, grew even larger and survived much longer than previously thought, according to paleontologists who discovered well-preserved fossils in Morocco. The creatures, known as anomalocaridids, ranged in size from 2 to as much as 6 feet long. They had soft-jointed bodies and toothy maws with spiny limbs in front to catch their prey, scientists described in a paper published by the journal Nature. "They were really at the...

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2010-12-20 06:20:00

Life on Earth began to flourish about 3 billion years ago, possibly when primitive forms developed efficient ways to harness energy from the Sun's light, according to a new study published in the journal Nature on Sunday. Scientists at the Massachusetts Institute of Technology (MIT) built a "genomic fossil" -- a mathematical model that took 1,000 key genes that exist today -- and calculated how they evolved from the very distant past. The collective genome of all life expanded massively...

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2010-11-10 10:15:00

Beginning around 542 million years ago, a profusion of animals with shells and skeletons began to appear in the fossil record. So many life forms appeared during this time that it is often referred to as the "Cambrian Explosion." Geologists at UC Santa Barbara and a team of co-authors have proposed a rethinking of the timeline of these early animal appearances. Their findings are published in the latest issue of the Geological Society of America Bulletin. Charles Darwin, in his book "On the...


Word of the Day
endocarp
  • The hard inner (usually woody) layer of the pericarp of some fruits (as peaches or plums or cherries or olives) that contains the seed.
This word comes from the Greek 'endon,' in, within, plus the Greek 'kardia,' heart.
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