Promotions

COUPONS

We offer free shipping on many retail items and free standard shipping on orders over $35. Use coupon code FREESHIP35 if the discount is not automatically applied. Please note that we only ship within the United States at this time.

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EXCLUSIVE OFFERS

Join us LIVE on the Whatnot app for exclusive deals and giveaways. Get $15 off your first purchase when you use our referral link to sign up on Whatnot: https://whatnot.com/invite/tyrannostorus

SPECIAL EVENTS

Come to our activity center in Mesa, Arizona to enjoy the following activities. This list will be updated when new promotions and events are available.

Summer Classes 2026

Join us from 10-11 AM on Saturdays and Sundays in June and July! Get 10% off when you sign up for 4 or more summer classes in a single transaction. The discount will be automatically applied at checkout! Registration is online and closes 24 hours before each session. Click here for more information and to sign up today!

Check out what we have to offer!

Parties

Birthday parties at Tyrannostorus are truly unforgettable! Participants receive a small fossil dig, lucky strike pay dirt, a bag of polished gemstones, and a small geode. The birthday guest is upgraded to the large fossil dig and 10 pound mother lode bag of pay dirt. Party packages are $45 per participant and require a 6 person minimum as well as a $100 deposit. Additional activities can be added to the package for 20% off the regular price.

Classes

Join us at Tyrannostorus for engaging classes starting at $24.95. Classes include educational presentations and hands-on activities!

Field Trips

Come to Tyrannostorus for one-of-a-kind field trips that are fun and educational. Our STEM based activities are hands-on and engaging. Packages start at $24.95 per participant and require a minimum of 8 participants.