class placodermi

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Definitions from WordNet

Noun class placodermi has 1 sense

Placodermi, class Placodermi - extinct group of bony-plated fishes with primitive jaws
--₁ is a kind of class
--₁ is a member of
Vertebrata, subphylum Vertebrata, Craniata, subphylum Craniata
--₁ has members: placoderm

Definitions from the Web

Term: Class Placodermi

Description:

Class Placodermi is an extinct group of armored fish that thrived during the Devonian Period. They were the first jawed vertebrates and played a significant role in shaping the evolution of modern fish. Placoderms were characterized by their bony plates covering their head and thorax, and some species had jointed appendages that resembled primitive limbs.

Sample sentences:

The Class Placodermi was a diverse group of fish that lived in various aquatic habitats.
Scientists have discovered well-preserved fossils of Class Placodermi all around the world.
Placoderms were known for their impressive armor, which provided protection against predators.
The jaws of Class Placodermi were more powerful and versatile than those of their cartilaginous relatives.
During the Devonian Period, Class Placodermi played a crucial role in the marine ecosystems.

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