Skip to main content
Cephalaspida

Cephalaspida

9.9
An extinct group of early fish with bony head shields
  • noun
  • Specialized
translation icon : Cephalaspida
  • The Cephalaspida possessed distinct head shields that protected them from predators.

Examples

  • Fossil remains of Cephalaspida provide insight into the evolution of early vertebrates.

  • Paleontologists have debated the exact classification of Cephalaspida due to incomplete fossil evidence.

  • The Cephalaspida were fascinating creatures of the past.

  • Did you know that Cephalaspidas had bony head shields?

  • Fossil remains of Cephalaspida provide insight into the evolution of early vertebrates.

  • The Cephalaspida possessed distinct head shields that protected them from predators.

  • Paleontologists have debated the exact classification of Cephalaspida due to incomplete fossil evidence.

Synonyms

osteostracan
vsCephalaspida
  • Specialized
9.9

An extinct jawless fish with a heavy armored head from the Devonian period

focuses specifically on bony head shields rather than general armor
Osteostraci
vsCephalaspida
  • Specialized
9.9

An extinct group of armored, jawless fish that lived a long time ago

highlights distinct bony head shields from the Silurian and Devonian
Ostracodermi
vsCephalaspida
  • Specialized
9.9

An extinct group of jawless animals with heavy bony shields from long ago

is more about prominent head shields than overall body armor
ostracoderm
vsCephalaspida
  • Specialized
9.9

A fish without jaws that had heavy bony armor and lived long ago

places special emphasis on strong bony protection of the head
Heterostraci
vsCephalaspida
  • Specialized
9.9

A group of armored jawless fish that lived in ancient seas and are now extinct

is defined more by noticeable bony head shields than by general armor
order Anaspida
vsCephalaspida
  • Specialized
9.9

An extinct group of jawless fish that lived hundreds of millions of years ago

adds the specific feature of heavy bony head shields to that picture
Ganoidei
vsCephalaspida
  • Specialized
9.9

A group of mostly extinct early bony fish with hard scales like armor

is narrower, stressing a solid bony shield on the head
Placodermi
vsCephalaspida
  • Specialized
9.9

An extinct group of early fish with bony plates and simple jaws

differs by focusing on head shield armor rather than jawed armor plates

Surface Forms

Cephalaspida singular
Cephalaspidas plural

Etymology

The word Cephalaspida comes from the Greek parts kephalē 'head' and aspis 'shield'. So, the name means 'head shield' and helps you remember these early, armored fish that had big bony shields on their heads.