Fossil cast of Mawsonites spriggi thought to be a jellyfish imprint.  Found in South Australia and creature existed in the Late Neoproter...

The crinoid Dizygocrinus indianensis Lyon & Casseday probably of the Carboniferous Period found in Indiana.  Fossil is on display at ...

A large plate showing Talarocrinus patei crinoids of the early Carboniferous Period found in Kentucky.  This plate is on display at the Sm...