Answer Monday!

Photo Credit: GANDALF_GREY via Compfight cc

This last week, I gave you a tricky fossil with the most basic of questions: was it animal, vegetable or mineral? Well, obviously mineral at this point, but when it was once alive, this little puffball was actually a now-extinct stingray!

This Heliobatis sp. was found in the Green River Formation in Wyoming. It dates back to the Eocene, 58-36 million years ago.

Kudos to those who guessed it! You get bragging rights for this week and next week, since this fossil lady is going on a much-needed vacation. 

We'll see you in the new year!


Minda Berbeco
Short Bio

Minda Berbeco is the former Programs and Policy Director at NCSE.

We can't afford to lose any time when it comes to the future of science education.

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