Cambrian Explosion: Greenland finding (Introduction)

by David Turell @, Wednesday, March 26, 2014, 23:44 (2292 days ago) @ David Turell

A giant shrimplike animal with filter feeding, like later whales.:

"The new creature was unearthed in sediments known as the Sirius Passet formation. These shale-like deposits are teeming with primeval organisms from the evolutionary "big bang' known as the Cambrian explosion, a period between 540 million and 493 million years ago when most complex life on Earth emerged. [See Images of the Giant Cambrian Creature]

"Before then, most life forms were bacteria or microbial mats, but during the Cambrian hard exoskeletons, jointed limbs, compound eyes and antennae evolved.

"While on an excavation trip in 2009, the team unearthed fragments of strange feeding appendages attached to a head shield from an unknown creature. The appendages, which date to about 520 million years ago, belonged to a group known as anomalocarids, the top predators of their day."

Anomalocarids were found originally in the Canadian Burgess shale.

Complete thread:

 RSS Feed of thread

powered by my little forum