1. An extinct marine reptile of the order Ichthyosauria, resembling a dolphin with a long snout and paddle-like limbs, common during the Mesozoic Era.
Usage: paleontology; often used in scientific and educational contexts

1. Of, relating to, or characteristic of ichthyosaurs or the order Ichthyosauria.
Usage: paleontology

Examples

• The museum's fossil collection includes several well-preserved ichthyosaurian skeletons.
• Ichthyosaurians were among the most successful marine predators of the Mesozoic Era.
• Scientists discovered ichthyosaurian remains in rocks dating back 250 million years.
• The ichthyosaurian body plan was perfectly adapted for life in ancient oceans.
• This ichthyosaurian specimen shows remarkable detail in the fin structure.
• Ichthyosaurians gave birth to live young, unlike most other reptiles of their time.