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Definition of Cephalaspida
1. Noun. Extinct group of armored fish-like vertebrates; taxonomy is not clear.
Exact synonyms: Osteostraci, Suborder Cephalaspida, Suborder Osteostraci
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