Placodermi (Noun)
Meaning
Extinct group of bony-plated fishes with primitive jaws.
Classification
Nouns denoting animals.
Examples
- The fossilized remains of placodermi provide valuable insights into the evolution of vertebrate jaw structures.
- Placodermi dominated the oceans during the Devonian and Early Carboniferous periods, around 380-360 million years ago.
- Despite their primitive appearance, placodermi developed a remarkable array of armor plates that offered protection from predators.
- The discovery of placodermi fossils in North America has helped scientists reconstruct the ancient ecosystems of the Appalachian region.
- Some placodermi species are characterized by their bizarre, shield-like heads that were likely used for defense and intimidation.