Waldron Shale Calyx

Okay, these fossils are quite small and are in need of magnified shots.  Two crinoid calyxes found in the Waldron Shale of Clark County, Indiana.  They are less than a 1 cm wide.  What is special about the calyx on the left is some of its arms are intact which is a first for me to find.  The calyx on the right is a Eucalyptocrinites.

Mawsonites spriggi (Jellyfish fossil?)

Fossil cast of Mawsonites spriggi thought to be a jellyfish imprint.  Found in South Australia and creature existed in the Late Neoproterozoic.  Fossil on display at Smithsonian Museum of Natural History on August 2010.

Learn more about it at Wikipedia.

Dizygocrinus indianensis Crinoid

The crinoid Dizygocrinus indianensis Lyon & Casseday probably of the Carboniferous Period found in Indiana.  Fossil is on display at the Smithsonian Museum of Natural History as of August 2010.

Their collections database lists a species as being found in Montgomery County, Indiana in the Osage Group (Keokuk Limestone).  In addition, it lists as from the Lower/Early Mississippian Period (USNM # S 5988).