heterostraci
1. [ noun ] (biology,zoology) extinct group of armored jawless fishes or fishlike vertebrate; taxonomy is not clear
Synonyms: suborder_Heterostraci
Related terms: animal_order Ostracodermi heterostracan
Similar spelling:   heterostracan
  heterozygous
  Heterosomata
  heterosexism
  Heteroscelus
  Heterokontae
  heterogenous
  heteroecious
  heterosporous
  heterospory
  heteroicous
  heterograft
  heterosexuality
  heterosexualism
  heterosexual