Eucalyptocrinus Crinoid Calyx

The Eucalyptocrinus crassus (Hall, 1863) crinoid calyx with arm fragments and small stem section. Found in the Waldron Shale of Clark County, Indiana.  Found, imaged, and prepped by Kenny.  This Silurian period fossil is considered an index fossil for the Waldron Shale. 

The Waldron Shale fossils were documented in the Indiana Department of Geology and Natural History Eleventh Annual Report with John Collett State Geologist, 1881 published by Wm. B. Burford, State Printer of Indianapolis, 1882.  Below are some of the illustrations shown in this report.

Eucalyptocrinus crassus - Plate 17 Figure 5

Eucalyptocrinus crassus - Plate 17 Figure7

Eucalyptocrinus crassus - Plate 18 Figure 4

Eucalyptocrinus crassus - Plate 18 Figure 5

Eucalyptocrinus crassus - Plate 18 Figure 6

Eucalyptocrinus crassus - Plate 18 Figure 7

Glyptocrinus Crinoid Calyx

This calyx fossil was found in the Waldron Shale of Clark County, Indiana.  It is somewhat worn but appears to be some sort of Glyptocrinus sp.  This crinoid existed in the Silurian Period. The white spots on the images are caused by light reflecting off pyrite crystals.

This last three illustrations Plate 13, figures 8-10 in the Indiana Department of Geology and Natural History (Eleventh Annual Report) from 1881.

Platyceras dumosum Snail Fossil

Platyceras dumosum (Conrad, 1840) snail fossil found in the Jeffersonville Limestone of Jefferson County, Kentucky USA.  Animal existed in Devonian Period.

Thanks to Kenny for the pictures and his nice prep work on this fossil.