Description
This Horn Coral is called Lophophyllidium proliferum and is from the Pennsylvanian Period. That makes it about 295 million years old. It is about 3/4 inch long with the classic cone shape. They come from Cass Co., Nebraska. Horn Corals are from the extinct order of corals called Rugosa. Rugose means wrinkled. The outside of these corals have a wrinkled appearance. Horn Coral grows in a long cone shape like a bulls horn. The fossil is the skeleton of the coral animal or polyp. The animal lived at the top of the cone. They had many tentacles sticking out to gather food. The tentacles gave the horn coral a flower like appearance.
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