Eucalyptocrinites crassus Crinoids

(Click Photo to Enlarge)

Eucalyptocrinites crassus

Waldron Shale Formation

Shelby County, IN
Silurian

 

Here is a wonderfully preserved crinoid from the Waldron Shale Formation. The Eucalyptocrinites crassus is the most common crinoid found in the Waldron Shale, but specimens, like this, containing the inner and outer arms is very uncommon. This nice specimen measures 2" long.

(Click Photo to Enlarge)

Eucalyptocrinites crassus

Waldron Shale Formation

Shelby County, IN
Silurian

 

Here is another wonderfully preserved Eucalyptocrinites from the Waldron Shale Formation. This Eucalyptocrinites crassus doesn't have the inner and outer arm preservation like the first specimen, but is more elongated than the first specimen. This nice specimen measures 2 3/8" long.

(Click Photo to Enlarge)

Eucalyptocrinites crassus

Waldron Shale Formation

Clark County, IN
Silurian

 

Here is a magnificent crinoid specimen found by my father last summer. This crinoid, Eucalyptocrinites crassus, has an extremely inflated and robust crown which is enhanced by the 3 3/8" of stem that runs almost to the root system. The crown measures 1 1/8" long. All the inner and outer arms are present and have formed a tight "ball". This is one of my favorite crinoids from the Waldron Shale Formation.

(Click Photo to Enlarge)