Cephalon (head): Housed compound eyes
Pyrite is often found associated with other minerals such as quartz and barite
making their fossils valuable indicators of ancient marine environments
During the Paleocene epoch (66–56 million years ago)
positioning it as a pivotal early archosaur that illuminates the evolutionary divergence of these major reptilian groups
5.7" Fenestella Fossil Bryozoan Moss Animal Upper Ordovician Age Macao Portugal Trilobite Cephalon (head): Housed compound eyesLocation: 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