Elasmosaurus
ExploreAncient
Elasmosaurus
Elasmosaurus platyurus
Elasmosaurus was a powerful marine reptile that swam the ancient seas using flippers and a streamlined body.
Habitat: Mesozoic oceans and coastal waters
Appearance
The Elasmosaurus has an incredibly long neck, a tiny head, and a large, sleek body with four powerful paddle-like flippers. Its back might have been dark blue-grey, fading to a lighter underside for camouflage in ancient seas.
KingdomAnimalia
Category
AncientRarity
Common
Danger
1/5 · Very low
Snaps
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Interesting facts
Early scientists once put its head on the wrong end of its body!
Elasmosaurus swam the same oceans as fierce mosasaurs and sharks.
Its neck had over 70 bones, more than any other known animal!
This massive marine reptile could grow longer than a school bus!
Special abilities
Ability
Neck Ambush
Elasmosaurus can snatch fast-moving prey from below with its super-long neck, darting its head quickly through the water.
Ability
Underwater Flight
Elasmosaurus uses four strong, paddle-like flippers to 'fly' gracefully through the water, like a sea turtle.
Ability
Stealthy Snatcher
Its small, streamlined head allows Elasmosaurus to dart into schools of fish without startling the whole group.
Measurements & details
- Estimated Length
- 10-14 m
- Estimated Weight
- 1500-2000 kg
- Era
- Cretaceous Period
- Extinct Millions Years Ago
- 66
Diet & Feeding
This ancient marine reptile hunted fish, squid, and other small sea creatures with its long neck.
Primary Foods
- Fish
- Ammonites
- Squid
- Bony fish
Foraging Method
- Ambush
Ecological connections
hunts
Sabretooth Herring
Enchodus ferox
A primary prey fish for Elasmosaurus.
eats
Straight Ammonite
Baculites ovatus
A common cephalopod prey in its ancient ocean habitat.
eaten by
Tylosaurus
Tylosaurus proriger
Juvenile Elasmosaurus were likely prey for large mosasaurs.
eaten by
Crow Shark
Squalicorax pristodontus
Sharks may have preyed on young or injured Elasmosaurus.
Traits
Webbed Feet
Characterized by having toes connected by a membrane, typically aiding in swimming.
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.
Armored
Armored describes animals protected by a hard, external covering or shell for defense.
Crystalline
Crystalline describes a mineral or rock composed of crystals, often exhibiting a regular atomic structure and geometric external form.
Fossil
A fossil is the preserved remains or traces of an ancient organism embedded in rock or other geological deposits.
Also known as
No aliases listed yet.
Collections
Safety
Danger
1/5 · Very low
While extremely dangerous in their time, this creature is now extinct.
Frequently Asked Questions
How long is Elasmosaurus?
10-14 m
How much does Elasmosaurus weigh?
1500-2000 kg
What does Elasmosaurus eat?
This ancient marine reptile hunted fish, squid, and other small sea creatures with its long neck.
Where is Elasmosaurus usually found?
Mesozoic oceans and coastal waters
How does Elasmosaurus hunt?
Ambush
What geologic era did Elasmosaurus live in?
Cretaceous Period
When did Elasmosaurus go extinct?
66
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