Dikelocephalus minnesotensis (Trilobite) fossil

Dikelocephalus minnesotensis (Trilobite)

Geologic age: 492.5–497 million years ago, Cambrian Period

Region in Minnesota: St Croix River Valley (Afton to Taylors Falls)

Fast fact: Trilobites are extinct, insect-like sea creatures. There were many varieties of trilobite, but this one has "Minnesota" right in the name! It got the name based on fossil material discovered near Stillwater, Minnesota, almost 170 years ago. Those fossils are now in the Smithsonian National Museum of Natural History, but Dikelocephalus will always be a hometown star.

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