Molds may be external - of the exterior of the shell, as on the slab of snail and clam external molds. If a shell fills with sediment that later hardens, it forms an internal mold ( a 3-D picture of ...

The study of Cretaceous clam shrimp, particularly those belonging to the group Spinicaudata, has gained significant attention in recent years. These small crustaceans, often found in fossilized ...

Giant clams, some of the largest mollusks on Earth, have long fascinated scientists. These impressive creatures can grow up to 4.5 feet in length and weigh over 700 pounds, making them icons of ...