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Glite Dictionary
Exocycloida

Exocycloida

9.9
A former group of sea urchins with a flattened body from top to bottom
  • noun
  • Archaic
: exocicloides
  • Unlike most sea urchins, members of Exocycloida exhibit a flattened body plan.

Examples

  • The fossil record includes several remarkable specimens belonging to the order Exocycloida.

  • Did you know that Exocycloida are a type of flat sea urchin?

  • Scientists studying deep-sea ecosystems have identified unique features in Exocycloida.

  • The Exocycloida were once abundant in ancient seas.

  • Researchers have discovered that Exocycloida have a distinct dorsoventrally flattened body shape.

  • The order Exocycloida comprises several ancient sea urchin species with unique anatomical features.

  • Fossilized remains reveal that Exocycloida once thrived in a variety of marine environments.

Synonyms

order Exocycloida
vsExocycloida
  • Specialized
9.9

A group of flat sea urchins with a similar body shape that live in the ocean

is a formerly accepted taxonomic group no longer recognized

Compounds

order Exocycloida
  • Specialized
9.9

A group of flat sea urchins with a similar body shape that live in the ocean

Surface Forms

Exocycloida singular
Exocycloida plural

Morphology

Exocycloida = Cycloida (opaque) = exo + cyclo + ida

Formed from scientific combining forms plus the taxonomic suffix '-ida'; this technical construction is not transparently meaningful to an average learner.

Etymology

Exocycloida comes from the parts exo- 'outside', cyclo- 'circle', and -oida 'shape'. Think of a flat outside circle or disc — that image helps explain why these sea urchins had a flattened, round body.