Quantcast
ZME Science
  • News
  • Environment
  • Health
  • Future
  • Space
  • Features
  • More
    • About
    • The Team
    • Advertise
    • Contribute
    • Our stance on climate change
    • Privacy Policy
    • Contact
No Result
View All Result
ZME Science

No Result
View All Result
ZME Science
No Result
View All Result
Home Other Fossil Friday

#Fossil Friday: Ordovician Edrioasteroidea

Mihai Andrei by Mihai Andrei
January 30, 2016
in Fossil Friday
Reading Time: 1 min read
A A
Share on FacebookShare on TwitterSubmit to Reddit
Image via Wiki Commons
The fossil comes from the Bellevue formation in Ohio. Image via Wiki Commons

This is Streptaster vorticellatus, a member of the Edrioasteroidea class. The Edrioasteroidea is an extinct class of echinoderms that lived all the way on from the Ediacaran period 600 million years ago! However, Streptaster vorticellatus lived “only” 450 million years ago, during a period called the Ordovician. The body plan for this class was simple: a main body (theca), composed of many small plates, a peripheral rim for attachment, and (in some species) a pedunculate zone for extension and retraction.

Sorry to interrupt, but you should really...

...Join the ZME newsletter for amazing science news, features, and exclusive scoops. More than 40,000 subscribers can't be wrong.

   

 

ADVERTISEMENT
ADVERTISEMENT

ShareTweetShare
Mihai Andrei

Mihai Andrei

Andrei's background is in geophysics, and he's been fascinated by it ever since he was a child. Feeling that there is a gap between scientists and the general audience, he started ZME Science -- and the results are what you see today.

ADVERTISEMENT
ADVERTISEMENT
  • News
  • Environment
  • Health
  • Future
  • Space
  • Features
  • More

© 2007-2019 ZME Science - Not exactly rocket science. All Rights Reserved.

No Result
View All Result
  • News
  • Environment
  • Health
  • Future
  • Space
  • Features
  • More
    • About
    • The Team
    • Advertise
    • Contribute
    • Our stance on climate change
    • Privacy Policy
    • Contact

© 2007-2019 ZME Science - Not exactly rocket science. All Rights Reserved.