Hi, what can you tell me about the wiggly jiggly Amiskwia?
Not much!
Amiskwia lived during the Middle Cambrian, about 520 million years ago. It was a shell-less invertebrate, lacking any sort of support structure. It had a roundish head with two tentacles, which might have been sensory antennae, and a long wormlike body lined with propulsive fins. It was a powerful free swimmer that spent little, if any, time in benthic environments; as a result, fossilized remains are extremely rare.
Due to the rarity of fossil remains, Amiskwia is obscure and poorly understood, even for a Cambrian animal. Numerous hypotheses have been put forward; it could be a basal chaeotognath, a nemertean, the larval form of some entirely different animal, or a member of a group with no living evolutionary descendants.
