Members of this genus are marine invertebrates characterized by bivalve-like shells arranged dorsally and ventrally
about 110 million years ago
brecciated jasper is frequently used in lapidary arts for cabochons
Its waters prevented decay and scavenging
These carnivorous cephalopods likely fed on plankton
1.8" Ammonite Fossil Polished, Cut Half's Atlas Mountains Morocco Jurassic Age COA Nanotyrannus Members of this genus areLocation: Atlas Mountains, Morocco Weight: 1. 1 Ounces Dimensions: 1. 8 Inches Long, 1. 2 Inches Wide, 0. 4 Inches Thick Comes with a Certificate of Authenticity. The item pictured is the one you will receive. Jurassic Age, 201 million years old. Ammonites are iconic extinct marine invertebrates of the class Cephalopoda within the phylum Mollusca, related to modern nautilus, squid, and octopus. They ruled the oceans for around 350 million years, with