Placoderm - Wikipedia
Placoderms (from 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 Paleozoic fossils during the Silurian and the Devonian periods.
Placoderm | Devonian period, armored fish, jawed vertebrates
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 359 million years ago), but only two species persisted into the succeeding Carboniferous Period.
Dunkleosteus - Wikipedia
Dunkleosteus is an extinct genus of large arthrodire ("jointed-neck") fish that existed during the Late Devonian period, about 382–358 million years ago. It was a pelagic fish inhabiting open waters, and one of the first apex predators of any ecosystem .
Placoderms: Current Biology - Cell Press
2024年1月22日 · For over 70 million years, during the Paleozoic, the placoderms (Greek for ‘plated skin’), an extinct group of armoured fishes, were the most abundant and diverse vertebrates on our planet.
Arthrodira - Wikipedia
Arthrodira (Greek for "jointed neck") is an order of extinct armored, jawed fishes of the class Placodermi that flourished in the Devonian period before their sudden extinction, surviving for about 50 million years and penetrating most marine ecological niches. Arthrodires were the largest and most diverse of all groups of placoderms.
Placoderms - ScienceDirect
2024年1月22日 · For over 70 million years, during the Paleozoic, the placoderms (Greek for ‘plated skin’), an extinct group of armoured fishes, were the most abundant and diverse vertebrates on our planet.
Placoderm - Simple English Wikipedia, the free encyclopedia
The placoderms (Placodermi: Greek = plated skin) were a class of armoured prehistoric fish, which lived from the mid Silurian to the end of the Devonian period. Their head and thorax were covered by armoured plates; the rest of the body was scaled or naked, depending on the species.
Placoderm - New World Encyclopedia
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 jawed fish and were dominant vertebrates in the Devonian.
Placoderms (Armored Fish): Dominant Vertebrates of the …
2010年4月30日 · Placoderms, the most diverse group of Devonian fishes, were globally distributed in all habitable freshwater and marine environments, like teleost fishes in the modern fauna. Their known...
DID PLACODERM FISH HAVE TEETH? GAVIN C. YOUNG Geology Dept., Australian National University, Canberra, ACT, Australia The famous brachythoracid arthrodires from the Late Devo-nian Cleveland Shale of Ohio were the first large marine ver-tebrate predators of the world's oceans. Dunkleosteus was at