Anomalocaris

Anomalocaris is a standalone fossil: one piece completes it. Dig up fossils at the cracks on the ground, have Blathers assess them, then donate it to the museum or sell spares for 2,000 Bells.

Anomalocaris swam the Cambrian seas over 500 million years ago and was one of the top predators of its day. It grabbed prey with two spiky arms at the front of its head. Its name means 'abnormal shrimp'.