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suborder Heterostraci

suborder Heterostraci

9.9
Fish with hard plates and no jaws known from fossils that lived a very long time ago
  • noun
  • /ˈsʌbˌɔrdər ˌhɛtəˈrɒstrəˌsi/
  • Specialized
translation icon : suborden Heterostraci
  • The suborder Heterostraci includes some of the earliest jawless fish.

Examples

  • Fossils of the suborder Heterostraci reveal complex armored plates and jawless forms.

  • The suborder Heterostraci thrived in Devonian seas before eventually becoming extinct.

  • Many paleontologists study the suborder Heterostraci to understand early vertebrate evolution.

  • Did you know that the suborder Heterostraci existed during the Paleozoic era?

  • Fossils of the suborder Heterostraci reveal complex armored plates and jawless forms.

  • The suborder Heterostraci thrived in Devonian seas before eventually becoming extinct.

  • Many paleontologists study the suborder Heterostraci to understand early vertebrate evolution.

Synonyms

Heterostraci
vssuborder Heterostraci
  • Specialized
9.9

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

is the same fish group named as a formal taxonomic subgroup

Surface Forms

Morphology

suborder + Heterostraci

This is a straightforward taxonomic construction: "suborder" (a classification rank) applied to the taxon name "Heterostraci." If a learner knows the meaning of both constituents (in particular that Heterostraci are armored jawless fishes), the combined meaning is directly derivable. Such noun + proper-name taxonomic phrases are compositional and cross-linguistically transparent.

Etymology

The noun suborder Heterostraci is a scientific name built from two parts. Hetero- means 'different' and -ostraci means 'shell' or 'plate', so the name paints a picture of jawless fish covered in armor plates and is used for that extinct group.