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Trilobite Fossil
ExploreAncient
Trilobite Fossil
A trilobite fossil is the hard shell of a tiny creature that lived a long, long time ago in the ocean. They were one of the first animals on Earth!
Appearance
The Trilobite Fossil is an ancient marine arthropod preserved in rock, often appearing as a dark brown or grey impression. It typically features a segmented body with a distinct head (cephalon), body (thorax), and tail (pygidium), sometimes with intricate eye structures.
KingdomAnimalia
Category
AncientRarity
Rare
Danger
1/5 · Very low
Snaps
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Interesting facts
Over 20,000 different kinds of trilobites once roamed the ancient seas!
Some species of trilobites could actually swim upside down!
These ancient creatures were Earth's first animals with complex eyes!
“Trilobite” means “three lobes,” for their unique segmented body shape!
Special abilities
Ability
Defensive Roll-Up
Trilobite Fossil could roll into a ball because of its flexible, segmented body that helped them protect their soft underside.
Ability
Panoramic Vision
Trilobite Fossil had compound eyes that helped them see predators and food from almost all directions.
Ability
Growth Shedding
Trilobite Fossil could shed its hard exoskeleton because it allowed them to grow bigger, like insects do today.
Ability
Mud Dweller
Trilobite Fossil could burrow into soft sediments because it helped them hide from predators and find food on the seafloor.
Measurements & details
- Estimated Length
- 0.003-0.7 m
- Era
- Paleozoic Era
- Extinct Millions Years Ago
- 252
Diet & Feeding
Trilobites were mostly detritivores or scavengers, eating tiny bits off the seafloor.
Primary Foods
- Organic debris
- Microbes
- Small invertebrates
- Algae
Foraging Method
- Foraging
Ecological connections
eaten by
Anomalocaris
Anomalocaris canadensis
This large arthropod was a dominant predator of the ancient seas.
eats
Ottoia worm
Ottoia prolifica
Some trilobites likely hunted or scavenged on these soft-bodied worms.
depends on
Obolella brachiopod
Obolella crassa
These filter-feeding animals shared the same seafloor habitats.
Traits
Camouflaged
Camouflaged describes organisms that possess coloring or patterns that allow them to blend into their environment.
Ancient
Ancient refers to organisms, objects, or geological formations that have existed for an extremely long period.
Artifact
An artifact is an object made or modified by human culture, typically of historical or archaeological interest.
Spiky/Thorny
Possessing sharp, pointed projections or spines on the body or surface.
Also known as
No aliases listed yet.
Collections
Safety
Danger
1/5 · Very low
Explore with care and ask an adult if you're unsure what to do.
Frequently Asked Questions
How long is Trilobite Fossil?
0.003-0.7 m
What does Trilobite Fossil eat?
Trilobites were mostly detritivores or scavengers, eating tiny bits off the seafloor.
How does Trilobite Fossil hunt?
Foraging
What geologic era did Trilobite Fossil live in?
Paleozoic Era
When did Trilobite Fossil go extinct?
252
Snap Map
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