cephalaspida

• Termo científico que designa um grupo extinto de vertebrados aquáticos com o corpo coberto por placas ósseas, cuja classificação taxonômica permanece incerta, sendo geralmente associados aos ostracodermos e considerados parentes próximos dos primeiros vertebrados sem mandíbula.

A scientific term referring to an extinct group of armored, fish-like vertebrates, whose taxonomic classification remains uncertain.

incontável · nome próprio

1. Extinct armored fish-like vertebratesC2formalscientific

   An extinct group of jawless, fish-like vertebrates that lived during the Paleozoic era, characterized by a bony head shield.

   Cefalaspídeos

   • Cephalaspida are known from fossils found in marine sediments.
   • The head shield of Cephalaspida was often covered with bony plates.
   • Paleontologists study Cephalaspida to understand early vertebrate evolution.