| Acanthalomina 
        minuta Trilobite
      Order Lichida, Family Odontopleuridae) Geological
      Time: Silurian Size: 6
        mm long by 4 mm wide on a 37 mm by 33 mm matrix Fossil Site: 
        Kopaninske Formation, Kosov, Czech Republic 
 
         
          |  Description: 
              Well-preserved example of a member of the Order Lichida, Family 
              Odontopleuridae, with dramatically-displayed spines for such a minute 
              taxon, a feature not often preserved intact. This one also has much 
              of the pustulose exoskeleton preserved as a rich white patina which 
              contrasts well with the dark matrix. Some examples of this diminutive 
              spiny trilobite have been found in Spain and the Western United 
              States, showing it had a more global range than many others from 
              the region. Trilobites from the region are becoming more difficult 
              to obtain as old deposits become played out or placed off-limits 
              by the government, making examples as fine as this even more rare. 
              I would recommend Milan Snajdr's excellent book to anyone interested 
              in the Bohemian trilobites.
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