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Fish Fossil (Knightia) Green River Wyoming
Fish Fossil (Knightia) Green River Wyoming
Fish Fossil (Knightia) Green River Wyoming

Fish Fossil (Knightia) Green River Wyoming

Regular price
$30.00
Sale price
$26.85
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Measures 2.6x2x 3/8 thick.  

 

The unusually excellent preservation of the Green River fish fossils is usually attributed to a combination of two conditions

1- a cold period that would have caused dead fish to sink faster due to a less inflated swim bladder

2- the great depth of the lakes and the consequent conditions that would have helped prevent scavengers from disturbing the dead fish during decomposition