The word “fossil,” comes from the Latin word “fossilis,” which means “dug up.” Fossils are the remains of animals and plants that have been preserved in rocks or minerals. Dinosaur bones maybe be the most well-known fossils, but they are not the only fossils. 

Fossils often are found in limestone and represent a variety of extinct marine invertebrate animal life forms, including brachiopods, bryozoans, clams, corals, crinoids, nautiloids and snails. Below are some of the most common fossils found in Missouri.

Did you know countless fossils are embedded directly in the polished stone slabs throughout the Missouri State Capitol in Jefferson City? Ancient marine fossils are visible in its exterior and in the interior walls and floors, rotunda, and stone steps of the grand stairways. Stop by the Missouri State Museum inside the State Capitol building to pick up a fossil pamphlet, explore the exhibits throughout the building, and discover the incredible fossils that help tell Missouri’s story!

Bivalves
Bivalves are aquatic mollusks with shells usually made up of calcium
Blastoids
Blastoids were stemmed echinoderm invertebrate animals
Brachiopods
Brachiopods are a category of shelled, marine, invertebrate animals
Conulariid Jellyfish
Conulariid jellyfish are primitive, tentacled, free-swimming invertebrate animals
Crinoid - Missouri's Official State Fossil
Crinoids make up a highly varied group of spiny skinned, marine, invertebrate animals
Gastropods
Gastropods are a class of mollusk animals that includes snails and slugs
Nautiloid
About 2,500 species of nautiloids are known to have existed through geologic time
Starfish
Many species of starfish are extinct. Approximately 1,500 species are alive today
Regular Echinoids
Regular Echinoids continue to live in the oceans today
Trilobite
Now extinct, trilobites lived in the world’s oceans
Parrosaurus missouriensis - Missouri's Official State Dinosaur
Hypsibema missouriensis bones found in Missouri reside in the Smithsonian Institution