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Glite Dictionary
Osteostraci

Osteostraci

9.9
An extinct group of armored, jawless fish that lived a long time ago
  • noun
  • /ˌɑːstɪˈɒstrəˌsaɪ/
  • Specialized
translation icon : Osteostraci
  • Fossils of the Osteostraci reveal the intricate armor plating that protected these ancient creatures.

Examples

  • The discovery of Osteostraci fossils provided new insights into the diversity of Paleozoic marine life.

  • Scientists believe that Osteostraci played a crucial role in the evolution of early vertebrates.

  • The Osteostraci were fascinating creatures of the Paleozoic era.

  • Did the Osteostraci have any predators?

  • Fossils of the Osteostraci reveal the intricate armor plating that protected these ancient creatures.

  • The discovery of Osteostraci fossils provided new insights into the diversity of Paleozoic marine life.

  • Scientists believe that Osteostraci played a crucial role in the evolution of early vertebrates.

Synonyms

Ostracodermi
vsOsteostraci
  • Specialized
9.9

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

emphasizes uncertain classification rather than the external armor
ostracoderm
vsOsteostraci
  • Specialized
9.9

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

focuses more on uncertain classification than general armor
osteostracan
vsOsteostraci
  • Specialized
9.9

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

covers the broader Paleozoic group with uncertain classification rather than Devonian specificity

Surface Forms

Osteostraci singular
Osteostracis plural

Etymology

Osteostraci comes from Greek parts osteo- meaning 'bone' and ostraci meaning 'shell' or 'shield', so the name means 'bony shield'. That's why Osteostraci is used for the armored, jawless fish that had heavy bony plates protecting their heads.