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with the apex species B
which is about 3 to 35 meters thick
an adaptation essential for evading contemporary carnivorous threats
The evolutionary history of ammonites reveals an extraordinary level of diversity and adaptability
1.7" Fossil Paralenorthis Sp Brachiopod In Matrix Valongo Formation Arouca Portugal Halite with the apex species BLocation: Valongo Formation, Arouca, Portugal Weight: 1 Pound 1. 6 Ounces Dimensions: 3. 7 Inches Long, 3. 5 Inches wide, 1. 1 Inches Thick (Matrix) Dimensions: 1. 7 Inches Long, 0. 9 Inches wide The item pictured is the one you will receive. Middle Ordovician Age, 470 Million Years Old. Paralenorthis sp. is a genus of brachiopods belonging to the class Rhynchonellata, a group of marine invertebrates characterized by their bivalve like shells. The