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Definition of Suborder osteostraci
1. Noun. Extinct group of armored fish-like vertebrates; taxonomy is not clear.
Exact synonyms: Cephalaspida, Osteostraci, Suborder Cephalaspida
Generic synonyms: Animal Order
Group relationships: Order Ostracodermi, Ostracodermi
Member holonyms: Cephalaspid, Osteostracan
Generic synonyms: Animal Order
Group relationships: Order Ostracodermi, Ostracodermi
Member holonyms: Cephalaspid, Osteostracan