5.7" Fenestella Fossil Bryozoan Moss Animal Upper Ordovician Age Macao Portugal Trilobite At its peak

At its peak

making their fossils valuable indicators of ancient marine environments

positioning it as a pivotal early archosaur that illuminates the evolutionary divergence of these major reptilian groups

Its closest living relative is the Asian elephant

5.7" Fenestella Fossil Bryozoan Moss Animal Upper Ordovician Age Macao Portugal Trilobite At its peakLocation: Macao, Portugal Weight: 7. 5 Ounces Dimensions: 5. 7 Inches Long, 2 Inches Wide, 0. 9 Inches Thick (Matrix) The item pictured is the one you will receive. Upper Ordovician, 452 Million Years old. Fenestella is a genus of bryozoans, also known as moss animals, famous for forming fan shaped colonies with a delicate, net like structure. Its name comes from the Latin word for little window, referring to the window like openings, or fenestrae, in