# Stegosaurus (*Stegosaurus stenops*)

Stegosaurus was a prehistoric dinosaur known for its distinctive features. Scientists study its bones to learn about how dinosaurs lived.

- **Category:** [Ancient](https://www.snappit.app/explore/categories/ancient)
- **Rarity:** Legendary
- **Danger:** 1/5 · Very low
- **Habitat:** Mesozoic forests and floodplains

![Stegosaurus](https://res.cloudinary.com/drieglelr/image/upload/v1771424339/objects/5751.jpg)

## Appearance

The Stegosaurus has a distinctive double row of large, kite-shaped plates along its back, typically dull brown or greenish. It also has four sharp, bony spikes on its tail, making it look like a walking fortress.

## Taxonomy

- **Kingdom:** Animalia

## Interesting facts

- It probably couldn't lift its tail very high due to heavy bones.
- Its brain was only about the size of a walnut!
- Some plates on its back were nearly three feet tall!
- The spiky tail weapon is called a "thagomizer," named after a far-side comic!

## Special abilities

- **Plate-Powered Thermoregulation:** Stegosaurus has large back plates that help it warm up in the sun or cool down in a breeze, regulating its body temperature.
- **Thagomizer Defense:** Stegosaurus can swing its powerful tail, equipped with four sharp spikes called a "thagomizer," to deter predators effectively.
- **Low-Level Grazing:** Stegosaurus has a small, beaked mouth that helps it strip leaves and low-lying vegetation from plants, foraging close to the ground.

## Measurements & details

- **Length:** 6-9 m
- **Weight:** 2000-5000 kg
- **Era:** Late Jurassic
- **Extinct Millions Years Ago:** 145

## Diet & Feeding

A plant-eating giant, Stegosaurus munched on low-growing plants like ferns and cycads.

- **Primary Foods:** ferns, cycads, conifers, horsetails, mosses
- **Foraging Method:** Grazing

## Ecological connections

- **Hunts:** [Allosaurus](https://www.snappit.app/explore/allosaurus) (*Allosaurus fragilis*) — A major predator, it hunted large herbivores like Stegosaurus.
- **Eaten by:** [Cycad](https://www.snappit.app/explore/cycad) (*Cycadeoidea marseille*) — A primary food source for plant-eating dinosaurs like Stegosaurus.
- **Depends on:** [Apatosaurus](https://www.snappit.app/explore/apatosaurus) (*Apatosaurus ajax*) — Shared similar grazing lands and water sources with Stegosaurus.

## Traits

- [Ancient](https://www.snappit.app/explore/traits/ancient): Ancient refers to organisms, objects, or geological formations that have existed for an extremely long period.
- [Artifact](https://www.snappit.app/explore/traits/artifact): An artifact is an object made or modified by human culture, typically of historical or archaeological interest.
- [Fossil](https://www.snappit.app/explore/traits/fossil): A fossil is the preserved remains or traces of an ancient organism embedded in rock or other geological deposits.

## Collections

- [Ancient](https://www.snappit.app/explore/collections/ancient)

## Safety

**Danger:** 1/5 · Very low

While extremely dangerous in their time, this creature is now extinct.

## Frequently Asked Questions

### How to identify Stegosaurus?

Compare skull shape, horns, plates, limbs, posture and tail. Museum models and toys can mix features or follow outdated reconstructions. Dinosaur Identifier: upload a photo and compare the visible details.

### How long is Stegosaurus?

6-9 m

### How much does Stegosaurus weigh?

2000-5000 kg

### What does Stegosaurus eat?

A plant-eating giant, Stegosaurus munched on low-growing plants like ferns and cycads.

### Where is Stegosaurus usually found?

Mesozoic forests and floodplains

### How does Stegosaurus hunt?

Grazing

### What geologic era did Stegosaurus live in?

Late Jurassic

### When did Stegosaurus go extinct?

145

## More Ancient

- [Tyrannosaurus rex](https://www.snappit.app/explore/tyrannosaurus-rex) (*Tyrannosaurus rex*)
- [Triceratops](https://www.snappit.app/explore/triceratops) (*Triceratops horridus*)
- [Brachiosaurus](https://www.snappit.app/explore/brachiosaurus) (*Brachiosaurus altithorax*)
- [Velociraptor](https://www.snappit.app/explore/velociraptor) (*Velociraptor mongoliensis*)

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Source: [Stegosaurus: Facts & Places to See — Snappit](https://www.snappit.app/explore/stegosaurus)