BioScience Dictionary

 
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Ot.

Found Cambrian 1 time.

Displaying results 1 to 10.

1. Cambrian
Geologic period that begins the Paleozoic Era 570 million years ago. Marked in its beginning by a proliferation of animals with hard, preservable parts, such as brachiopods , trilobites , and archaeocyathids .

View web definitions »

Learn more about Cambrian »