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Middle Devonian

   Also found in: Wikipedia 0.02 sec.
Middle Devonian [′mid·əl di′vō·nē·ən]
(geology)
The geologic epoch occurring between the Upper and Lower Devonian, beginning approximately 385,000,000 years ago.


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The above only valid species of Bicarinatina occurs in the Middle Devonian on the Baltic plate, and is known from Estonia, Latvia, and northwestern Russia.
Lower-lower Middle Devonian, Middle-lower Upper Devonian, and some smaller aquifers, such as Stipinai, Zagare, etc.
Morphological response of prey to drilling predation in the Middle Devonian.
 
 
 
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