Ichthyosaurus
- When: Early Jurassic
(199–190 mya) - Where: Europe
- What: Ichthyosaur
- Weight: 180 kg
- Length: 2–3 meters
- Diet: Piscivorous
- Discovered: 1825
Ichthyosaur
Shonisaurus
- When: Late Triassic
(225 mya) - Where: North America
- What: Ichthyosaur
- Weight: 30–40 metric tons
- Length: 15 meters
- Diet: Piscivorous
- Discovered: 1976
Shastasaurus
- When: Late Triassic
(210 mya) - Where: North America
- What: Ichthyosaur
- Weight: 25–75 metric tons
- Length: 20 meters
- Diet: Piscivorous
- Discovered: 1895