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Pentremites godoni Blastoid #1

$2.00

  • Genuine Fossil Pentremites Blastoids
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  • Certificate of Authenticity Available on Request
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27 in stock

Description

Pentremites godoni Blastoid

  • Pentremites godoni
  • Mississippian Age
  • Paint Creek Formation
  • Illinois
  • These specimens will average .23″ – .45″ +/- The price is for ONE specimen. NO BROKEN Several available!
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Blastoids (class Blastoidea) are an extinct type of stemmed echinoderm, often referred to as sea buds.  They first appear, along with many other echinoderm classes, in the Ordovician period, and reached their greatest diversity in the Mississippian subperiod of the Carboniferous period. However, blastoids may have originated in the Cambrian. Blastoids persisted until their extinction at the end of Permian, about 250 million years ago. Although never as diverse as their contemporary relatives, the crinoids, blastoids are common fossils, especially in many Mississippian-age rocks.

Pentremites godoni Blastoid