LEGO 31058
LEGO Creator Mighty Dinosaurs Instruction Manual
Model: 31058 | Brand: LEGO
1. Introduction
Welcome to the world of LEGO Creator Mighty Dinosaurs! This 3-in-1 building set allows you to construct three different dinosaur models: a ferocious T. rex, a powerful Triceratops, and a terrifying Pterodactyl. Designed for ages 7-12, this set encourages creativity and imaginative play, offering hours of building and rebuilding fun.
The T. rex features bright orange eyes, posable joints and head, large claws, and an opening mouth with pointed teeth. It also includes a buildable rib cage representing its prey. The models are designed to be sturdy once built, ensuring durability during play.
2. Product Overview
The LEGO Creator Mighty Dinosaurs (Model 31058) set provides a versatile building experience with 174 pieces. Its core feature is the ability to transform the same set of bricks into three distinct dinosaur figures, fostering problem-solving skills and creative thinking.
- 3-in-1 Building: Construct a T. rex, Triceratops, or Pterodactyl from the same set of pieces.
- Posable Features: Each dinosaur model includes posable joints for dynamic play and display.
- Detailed Design: Features like the T. rex's sharp teeth and the Triceratops' horns add to the realistic appeal.
- Expandable Play: Compatible with all other LEGO construction sets for endless building possibilities.

Image: The three possible dinosaur models from the LEGO Creator Mighty Dinosaurs set.
3. Setup and Assembly
Assembly of the LEGO Creator Mighty Dinosaurs set is straightforward, guided by the included instruction booklets. Each model has its own dedicated set of instructions, allowing builders to focus on one creation at a time.
- Unpack Components: Carefully open the box and sort the LEGO bricks.
- Select Model: Choose which dinosaur model you wish to build first (T. rex, Triceratops, or Pterodactyl).
- Follow Instructions: Refer to the corresponding instruction booklet for step-by-step visual guidance. The instructions are designed to be easy to follow for the recommended age group.
- Assemble Sections: Build the model section by section, ensuring all pieces are firmly connected.
- Verify Completion: Once all steps are completed, check your model against the images in the instruction booklet to ensure accuracy and stability.
To build a different model, you will need to disassemble the current model completely before starting the new one. This set technically allows for a fourth model (a long-neck dinosaur) by visiting the LEGO Creator website for additional instructions.

Image: A detailed view of the assembled T. rex model.
4. Operating and Play
The LEGO Creator Mighty Dinosaurs are designed for interactive play. Each model features posable elements that allow for dynamic poses and imaginative scenarios.
- T. rex: Move its arms, legs, and tail. Open and close its jaw to reveal sharp teeth. The included buildable rib cage can be used as its prey for enhanced play.
- Triceratops: Position its legs and head for various stances.
- Pterodactyl: Adjust its wings and head for flying poses.
Encourage children to experiment with different poses and create their own prehistoric adventures. The sturdy construction ensures the models can withstand active play.

Image: A child engaging in imaginative play with the T. rex model.
5. Maintenance
To ensure the longevity and cleanliness of your LEGO Creator Mighty Dinosaurs set, follow these simple maintenance guidelines:
- Cleaning: Use a soft brush or a damp cloth with mild soap to gently clean the bricks. Avoid harsh chemicals or abrasive materials.
- Drying: Allow cleaned bricks to air dry completely before reassembling or storing.
- Storage: Store the LEGO bricks and assembled models in a clean, dry place away from direct sunlight and extreme temperatures to prevent discoloration or warping.
6. Troubleshooting
If you encounter any issues with your LEGO Creator Mighty Dinosaurs set, consider the following common solutions:
- Missing Pieces: In rare cases, a set might be missing a piece. Contact LEGO Customer Service directly through their official website for replacement parts.
- Model Instability: If your assembled model feels unstable, carefully re-examine the instruction steps. Ensure all bricks are pressed firmly together and connected in the correct orientation.
- Difficulty Disassembling: Some connections can be tight. Use a brick separator (if available from other LEGO sets) or gently pry apart stubborn bricks. Avoid using excessive force to prevent damage.
7. Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 10.31 x 1.89 x 5.55 inches |
| Item Weight | 8.3 ounces |
| ASIN | B01J41DNWM |
| Item Model Number | 31058 |
| Manufacturer Recommended Age | 7 - 12 years |
| Material | 100% Plastic |
| Number of Pieces | 174 |
| Release Date | January 1, 2023 |
8. Safety Information
Warning! Choking hazard. Small parts. Not suitable for children under 3 years old.
Always supervise young children during play to prevent ingestion of small parts. Keep packaging materials away from children.
9. Warranty and Support
LEGO products are known for their high quality and durability. For any questions regarding your LEGO Creator Mighty Dinosaurs set, including missing parts or building assistance, please visit the official LEGO Customer Service website.
Official LEGO Website: www.lego.com
LEGO offers support for product inquiries and replacement parts directly through their website.
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