Fossil Invertebrates

Fossil Invertebrates legally collected from all over the world collected from legal “Pay-to-Dig” dig sites or Private Properties.

Fossil Invertebrates include all plants and creatures without an internal backbone. These creatures include fossil brachiopods, cephalopods, gastropods, all types of plant material, corals, bryozoans and the list goes on.

Fossil invertebrates are usually the most common type of fossil found. Among others there are…..

Corals are simple aquatic animals that are credited with the formation of reefs and in some cases islands in the ocean. Corals are important rock builders because they are comprised of lime exoskeletons that are essential in the formation of limestone. Two common types of coral found here are solitary and colony corals. Their names suggest the way they evolved. Solitary corals such as horn coral grow by themselves and colony corals grow in tight groups.

These creatures are sometimes called “Moss Animals”. These are minute filter feeders that are a minute colonial creature that either forms branching or encrusting growths. Branching Bryozoans resemble corals. Each individual indentation in the Bryozoan you see contained a tiny creature.

These ancient creatures abounded in the seas of the Paleozoic Era. Sometimes called lamp shells, these once common invertebrates are some of the most easily recognized fossils. Of the nearly 30,000 species of brachiopods that were once common in the seas, only about 200 species survive today. These primitive seashells came in many forms. Usually they comprise two unequal halves. The shells are made up of calcium phosphate and chitin. The shells were held together by internal muscles. Some brachiopods grew to 9 inches long but most were only about an inch in diameter.

Cephalopods are an ancient group that appeared some time in the late Cambrian several million years before the first primitive fish began swimming in the ocean. Scientists believe that the ancestors of modern cephalopods octopus, squid, and cuttlefish diverged from the primitive externally shelled Nautilus very early – perhaps in the Ordovician, some 438 million years ago. They normally have a long bullet shape, but some species still have a rounded shell.

The Class Gastropoda includes the snails. Most gastropods have a single, usually spirally coiled shell into which the body can be withdrawn. Fossil gastropods had a muscular foot which was used for locomotion in most species. In some, it is modified for swimming or burrowing. Most gastropods had a well-developed head that included eyes, 1-2 pairs of tentacles, and a concentration of nervous tissue (ganglion).


There are many types of fossil plants. Some common types include fossilized ferns that originate in the Carboniferous period. Often found near coal mines these plants, mostly ferns have been preserved as carbon. There are several famous areas where these can be found. Also Commonly known as petrified wood these preserved trees exhibit exquisite detail. However in some locations collecting is not allowed.


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