Eucalyptocrinites crassus Crinoids

 

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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.

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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.

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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.

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Eucalyptocrinites crassus
Calymene breviceps
Waldron Shale Formation
Clark County, IN
Silurian
 
 
Here is a beautiful natural combination piece containing a huge and aesthetic Eucalyptocrinites crassus crinoid cup and an excellent Calymene breviceps trilobite.  The Eucalyptocrinites measures 1 1/2" tall and 1 5/8" wide while the Calymene measures 1 7/8" long and is nicely inflated. This is one of the best combination pieces ever found in the Waldron Shale.