Monday, October 22, 2018

Fact of the Day: Old Starfish

Starfish as a class of animal have been on the Earth since the Ordovician period, which was about 450 million years ago.  

9 comments:

  1. Very cool. They will outlive us all!

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  2. How can that be, if Earth is only 6,000 years? :-)

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  3. They are such interesting creatures.

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  4. Thanks for featuring the starfish which dates back to the Ordovician. It brought back memories of all nighters in the paleontology lab at Acadia and of studying the classification of the all invertebrates. I am fascinated with all of the echinoderms, ancient and modern. When I learned to scuba dive, it was exciting to see all the starfish, sea urchins, sea cucumbers, and, and ... It's unfortunate that starfish tend to disintegrate and that usually only their ossicles and spines are preserved in the fossil record. My favorite echinoderm fossils are the sea lilies.

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  5. They find their niche, evolutionarywise.

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