Logo
 
Home Blog Sitemap Contact
Bullet

Free Swimming Crinoid Fossils

Crinoid fossils known as Pentacrinites have been found attached to wood by long stems in small colonies. More recent crinoids related to Pentacrinites live on rocks and are attached with a shorter stem. The vast majority of modern crinoids have evolved to be stem-less and can swim around freely. Some of the free-swimming ancestors of these crinoids are the Marsupitsa, Saccocoma and Uintacrinus crinoid fossils. These free-swimming crinoid fossils have been discovered in the Niobrara chalk of Kansas and the Solnhofen limestone of Solnhofen Germany. The Niobrara chalk of Kansas has many free-swimming Uintacrinus crinoid fossils dated back to the Cretaceous. The Solnhofen limestone in Solnhofen Germany has many Pterocoma crinoid fossils dated back to the Jurassic.
 
Bullet

Fossil Information

Bullet Dinosaur National Monument Bullet La Brea Tar Pits
BulletAgate Fossil Beds Bullet Florissant Fossil Bed
Bullet Butte National Monument Bullet Green River Shale
Bullet Hagermann Beds Bullet John Day Beds
BulletBurgess Shale Bullet Mississippi Petrified Forest
Bullet Morrision Formation Bullet Petrified Forest National Park
Bullet State Fossil Information    
Bullet

Fossil Information

Arrow Ammonite
Arrow Animal
Arrow Crinoid
Arrow Fish
Arrow Fossil Teeth
Arrow Petrified-Wood
Arrow Plant
Arrow Trilobite
Bullet

Fossil Mammals

Arrow Wooly Mammoths
Arrow Saber Tooth Cats
 
Bullet

Dinosaur Fossil

Arrow Eggs
Arrow Bones
Arrow Footprints
Arrow T-Rex
 
Bullet

Minerals

Arrow Colloidal Minerals
Arrow Ionic Minerals
Arrow Mineral Specimens
Arrow Natural Minerals
Arrow Chelated Minerals