The Cambrian Explosion is a landmark moment in the history of life on Earth when many of the major groups of animals first appear in the fossil record. ...

Many Cambrian animals became extinct during the transition to the next geological period, ... Half-a-billion-year-old 3-eyed sea creature dubbed 'Mosura' breathed through big gills on its butt ...

Long before the first dinosaur hatched, Earth's ancient life was already thriving. There were bizarre sea creatures and lumbering plant-eaters that ruled prehistoric landscapes for hundreds of ...

Creatures of Cambrian May Have Lived On. Share full article. 23. 23. By John Noble Wilford. May 17, 2010; ... was confined to the sea — and what is now Canada was just south of the Equator.

But pinning down the exact origin of these squishy sea creatures, which are some of the earliest complex animals, is difficult. They rarely show up in the fossil record because jellyfish are 95 ...

Tunicates are filter-feeding invertebrates that include sea squirts and salps. ... Although they have been around since at least the Early Cambrian, ... Elizabeth Rayne is a creature who writes.

An ancient buglike sea creature with a fan-shaped tail and a carapace that wrapped around its body swam upside down and looked like a taco — but this taco could bite back.

The University of Cambridge’s Giovanni Mussini, the study’s lead author, said that all vertebrates likely evolved from Cambrian sea creatures known as vetulicolians, which sort of look like ...