# Trilobite (*Trilobita*)

Trilobites are ancient sea creatures that lived long before dinosaurs. They had hard shells and many legs, like tiny armored bugs of the past.

- **Category:** [Invertebrate](https://www.snappit.app/explore/categories/invertebrate)
- **Rarity:** Rare
- **Danger:** 1/5 · Very low
- **Habitat:** Marine

![Trilobite](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Koneprusia_brutoni.jpg&width=800)

Photo: Didier Descouens, CC BY-SA 3.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Koneprusia_brutoni.jpg)

## Appearance

The Trilobite has a distinctive three-lobed body, segmented lengthwise and across, covered by a hard exoskeleton. Its body is typically oval or elongated with a prominent head, a multi-segmented middle section, and a tail plate. While fossilized, some likely displayed dark, earthy tones or mottled patterns.

## Taxonomy

- **Kingdom:** Animalia
- **Phylum:** Arthropoda
- **Class:** Trilobita

## Interesting facts

- Some trilobites could even burrow into the seafloor, hiding from hungry predators!
- The largest trilobite ever found was over 70 centimeters long, about the size of a small dog!
- Their name means 'three lobes' in Latin, referring to the distinct sections of their body.
- Trilobites are more closely related to modern crabs and spiders than to insects, despite their appearance!

## Special abilities

- **Shell Shield:** Trilobite has a tough, segmented exoskeleton that helps them protect their soft body from predators and injuries.
- **Eye Spy:** Trilobite can see in many directions using large compound eyes because this helps them spot ancient predators and find food.
- **Curl Defense:** Trilobite can roll up into a tight ball because this ability helps them shield their vulnerable underside from danger.

## Measurements & details

- **Size:** 2-700 mm
- **Lifespan:** 365-1825 days
- **Leg Count:** 30

## Diet & Feeding

Trilobites grazed on detritus, filtered tiny particles, or hunted small invertebrates on the ocean floor.

- **Primary Foods:** organic debris, algae, microorganisms, small worms
- **Foraging Method:** Foraging

## Ecological connections

- **Eaten by:** Anomalocaris (*Anomalocaris canadensis*) — A large Cambrian predator that hunted early arthropods.
- **Eaten by:** Sea Scorpion (*Pterygotus rhenaniae*) — A giant Eurypterid, a formidable predator of ancient seas.
- **Eaten by:** Sacabambaspis (*Sacabambaspis janvieri*) — An early jawless fish that likely preyed on smaller marine creatures.

## 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.
- [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.
- [Glowing](https://www.snappit.app/explore/traits/glowing): Pertaining to organisms that emit light through bioluminescence or fluorescence.

## Collections

- [Fossils](https://www.snappit.app/explore/collections/fossils)

## Safety

**Danger:** 1/5 · Very low

Trilobites are fossils and no longer alive, so they are safe to explore and learn about.

## Frequently Asked Questions

### How to identify Trilobite?

Compare body symmetry, shells, segments, legs, tentacles and how the animal moves. Invertebrates span many unrelated groups, so start with body structure. Invertebrate Identifier: upload a photo and compare the visible details.

### How big is Trilobite?

2-700 mm

### How long does Trilobite live?

365-1825 days

### What does Trilobite eat?

Trilobites grazed on detritus, filtered tiny particles, or hunted small invertebrates on the ocean floor.

### Where is Trilobite usually found?

Marine

### How does Trilobite hunt?

Foraging

### How many legs does Trilobite have?

30

## More Invertebrate

- [Coral](https://www.snappit.app/explore/coral)
- [Crab Spider](https://www.snappit.app/explore/crab-spider) (*Mecaphesa asperata*)
- [Garden Spider](https://www.snappit.app/explore/garden-spider) (*Araneus diadematus*)
- [Brown Recluse Spider](https://www.snappit.app/explore/brown-recluse-spider) (*Loxosceles reclusa*)

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Source: [Trilobite: Characteristics, Facts & Places to See — Snappit](https://www.snappit.app/explore/trilobite)