Placoderms (from Ancient Greek πλάξ [plax, plakos] ' plate ' and δέρμα [derma] 'skin') [1] are vertebrate animals of the class Placodermi, an extinct group of prehistoric fish known from …

Placoderm, any member of an extinct group (Placodermi) of primitive jawed fishes known only from fossil remains. Placoderms existed throughout the Devonian Period (about 416 million to …

Introduction to the Placodermi Extinct armored fishes with jaws - a good non-technical coverage; "Devonian Armoured Fish" Annetta Markussen-Brown, 2000; Palaeozoic fossils UK; …

The Placodermi were a class of armored prehistoric fish, known from fossils, which lived from the late Silurian to the end of the Devonian Period. Their head and thorax were covered by …

The placoderms (class Placodermi) are armored prehistoric fishes known from fossils dating from the late Silurian to the end of the Devonian period. Placoderms were among the first of the …

Placodermi were the earliest jawed vertebrates of fossil record. They appeared in Silurian, flourished in Devonian and Carboniferous and became extinct in Permian.

The extinct armored fishes known as placoderms make up what is considered to be the earliest branch of the gnathostome family tree -- the earliest branch of the jawed fishes. Placoderms …

Jan 22, 2024 · Placoderms were the dominant vertebrates on Earth for almost 80 million years, becoming extinct at the end of the Devonian. The figure shows hallmarks of the external and …

Jul 28, 2025 · Uncover the story of placoderms: ancient armored fish that shaped early vertebrate life, thrived in diverse forms, and eventually vanished from prehistoric seas.

Placoderms (class Placodermi) diversified in the mid-Silurian or possibly earlier, an early pioneer in vertebrate evolution that would continue with the Devonian period immediately afterwards, …