Brief SummaryRead full entry
Hallucigenia sparsa is a genus of animal that lived in the Cambrian seas of what is now Western Canada, about 500 million years ago. It is probably one of the strangest organisms ever discovered, thus warranting its name. It is now recognized as a lobopodian worm (animals that have lobe-like feet). It was a small animal, about 0.5-3.5 cm in length, and had two rows of tube like legs that ended in claws and two rows of spikes on its back. It is so unusual that when it was first described, scientists reconstructed the spines on its back as its feet.