DinosaursNamesPrehistoric Database
Plesiosaurus reference image

Plesiosaurus

Plesiosaurus dolichodeirus

Marine ReptilePiscivoreLarge ClassLate Jurassic
Pronunciation:PLESIOSAURUS
Name Meaning:"Near Lizard"
Era:Prehistoric era
Executive Summary

Paleobiological Overview & Profile

An illustrated reference entry for Plesiosaurus, added to the Dinosaurs Names species roster.

Authentic Fossil Lore

This profile was added from the uploaded species artwork.

Scale & Dimensions

True Biological Size Comparison

Weight: 0.5 Metric Tonnes
Plesiosaurus4.5m Length • 1.5m Height
4.5m
Standard School Bus (Reference)12.0m Length • 3.0m Height
12m
Adult Human (Reference)1.8m Height
1.8m
Total Length4.5 meters14.8 feet
Stature Height1.5 meters4.9 feet
Estimated Mass450 kg992 lbs
Evolutionary Armaments

Anatomical Weapon Systems

Specialized biomechanical adaptations evolved for predatory dominance and defensive survival.

Signature Anatomy

The defining anatomical features associated with Plesiosaurus.

Combat RoleContributes to movement, defense, feeding, or threat display.

Complete Weapon Systems:

  • Natural jaws, teeth, or defensive anatomy
Combat Intelligence

Tactical Combat Playbook

Predatory strategies and survival mechanics against varying classes of prehistoric opponents.

vs. Rival Apex Predators:

Uses its body plan and primary defensive or offensive anatomy.

vs. Armored Herbivores (Tanks & Horns):

Targets vulnerable areas while avoiding direct defensive structures.

vs. Fast Agile Flankers:

Relies on habitat advantage, timing, and its available mobility.

Key Biological Advantages

  • +Adapted to its prehistoric environment

Tactical Weaknesses

  • -Limited fossil evidence for detailed behavior
Paleontological Truth

Pop-Culture Myth vs. Scientific Evidence

🎬 Cinema / Hollywood Depiction

"Popular media often simplifies prehistoric animal behavior."

🔬 Modern Fossil Evidence

Fossils provide the strongest evidence for anatomy and ecology.

Performance Metrics

Combat Rating Index

Attack Power52/100
Defense Resilience48/100
Locomotion Speed58/100
Bite Compression900 PSI
Cognitive Intelligence42/100
Paleo-Ecosystem

Habitat & Diet Specialization

Ecosystem & Climate

Prehistoric land, coastal, or marine environments depending on the species.

Diet & Prey Targets

Diet classification is based on the current reference profile.

Fossil Record

Discovery Provenance

Fossil Localities
Fossil record
First Excavation
0 AD
Primary Formation
Multiple fossil formations
Geological Epoch
Late Jurassic