cambrian period :

Search Words
You can search or browse for words

cambrian period

  • n  from 544 million to about 500 million years ago; marine invertebrates
News & Articles

  • Cascade of eventscaused sudden explosion of animal life
    Teaser The explosion of animal life on Earth around 520 million years ago was the result of a combination of interlinked factors rather than a single underlying cause, according to a new study. Dozens of individual theories have been put forward over the past few decades for this rapid diversification of animal species in the early Cambrian period of geological time. read more        
    Sept. 20, 2013 - TG Daily

Bee Dictionary: Search, browse, look at common errors, idioms and more.