anaspida

• Grupo extinto de vertebrados sin mandíbulas (agnatos), conocido de los períodos Silúrico y Devónico.

An extinct order of jawless vertebrates, known from the Silurian and Devonian periods.

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1. Extinct jawless vertebratesC2formalscientific

   An extinct order of jawless vertebrates that lived during the Silurian and Devonian periods, characterized by a scaleless body and a series of gill openings.

   Anáspidos

   • Fossils of Anaspida have been found in marine sediments from the Silurian period.
   • The Anaspida are considered an early group of vertebrates that lacked jaws.
   • Paleontologists study Anaspida to understand the evolution of early fish.