Opabinia existed on the soft sediment of the seafloor were it swam around using its lateral lobes. The head consisted of five eyes on the dorsal section that were used to look for prey. The animal's length varied up to 7.5 cm excluding the proboscis which was 2.5 cm. The proboscis was a long flexible appendage at the anterior of the body which ended in a spiny grasping structure. The creature could use its proboscis to search in sand burrows for worms.
Pencil and carbon dust on paper
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