Fossil Crinoid (Eucalyptocrinus) holdfasts - Indiana, USA - Silurian
Eucalyptocrinus Crinoid holdfasts (Two holdfasts on this matrix) from the Waldron Shale Fm., Indiana, USA
Dates to the Silurian period
Matrix: 17 cm x 17 cm x 2 cm (Weight: 1.27 kg)
Crinoid holdfasts: 6.5 cm x 5 cm & 6.5 cm x 5 cm
Excellent detail & nicely prepped.
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