1. relating to or characteristic of megafauna (large animals, typically those weighing over 45 kilograms)
Usage: scientific; paleontology

Examples

• The megafaunal extinctions at the end of the Pleistocene included mammoths and giant ground sloths.
• Scientists study megafaunal remains to understand ancient ecosystems.
• Africa still supports diverse megafaunal populations including elephants and rhinos.
• The megafaunal collapse in Australia occurred around 50,000 years ago.
• Researchers found megafaunal bones in the cave deposits.
• Climate change and human activity both contributed to megafaunal extinctions.