Siphonophrentis elongata Horn Coral

Here is a large Devonian horn coral that was found in central Jefferson County, Kentucky. This is just a small piece of one but they could grow to 60-80 cm in length. It came from Jeffersonville Limestone and existed in the Middle Devonian Period. It is called Siphonophrentis elongata (Rafenesque & Clifford, 1820).