일반명 : 바다나리 부착기관 또는 고착부
학명(Name) : Eucalyptocrinites sp. (maybe) Crinoid Holdfast Root System
지질시대(Age) : 실루리아기(Silurian)
지층(Formation) : Waldron Shale
원산지(Location) : Waldron, Indiana
크기(Size): Plate is 150mm*100mm

Very Large Crinoid Holdfast from Indiana
Here is a very interesting echinoderm fossil. It is a distinct crinoid holdfast from the Silurian of Indiana. The quarry where this specimen was found is now filled with water and closed to collecting. This root system is very 3-dimensional and exhibits great detail. The stem attachment point is easily seen, and the branching pattern of the rootlets is clearly defined. The fossil has excellent color and contrast and is well centered on the natural plate of shale that also contains a trilobite and many other fossils. This is a highly displayable example of a crinoid holdfast from the Waldron Shale.