Tully Monster Mystery

Tully Monster Mystery

Have you ever seen something like this before? Does it remind you of any other animals you’ve seen?

This animal is known as the Tully Monster and it lived 300 million years ago in Illinois.

View the video below to learn more about this curious creature!

As you watch, consider the following questions:

  • How do the scientists at Field Museum know about the Tully Monster?
  • Which modern creatures do scientists think the Tully Monster might have resembled?

Fossil Invertebrate Collection Manager Paul Mayer describes the Tully Monster and why it is significant and mysterious.

One of the key mysteries scientists have spent the last fifty years trying to figure out is whether the Tully monster was an invertebrate or a vertebrate.

Have you ever heard those terms before? What is an invertebrate? What is a vertebrate? Can you give an examples of each of these types of animals?

Move onto the next activity to learn more about invertebrates and vertebrates!