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gptkbp:instanceOf
|
gptkb:Extinct_jawless_fish
|
|
gptkbp:bodyCovering
|
Scales
Bony plates
|
|
gptkbp:characteristic
|
Armored body
Had bony head shields
Had gill openings
Had paired fins in some groups
Lacked jaws
|
|
gptkbp:class
|
gptkb:fish
|
|
gptkbp:diet
|
Filter feeders
|
|
gptkbp:discoveredBy
|
gptkb:19th_century
|
|
gptkbp:endangeredStatus
|
Extinct
|
|
gptkbp:etymology
|
Greek for 'shell-skinned'
|
|
gptkbp:firstAppearance
|
gptkb:Ordovician_period
|
|
gptkbp:fossilRange
|
Ordovician to Devonian
|
|
gptkbp:habitat
|
Freshwater
Marine
|
|
gptkbp:kingdom
|
gptkb:Animalia
|
|
gptkbp:lastAppearance
|
gptkb:Devonian_period
|
|
gptkbp:notableGroup
|
gptkb:Anaspida
gptkb:Osteostraci
gptkb:Heterostraci
gptkb:Thelodonti
|
|
gptkbp:phylum
|
gptkb:Chordata
|
|
gptkbp:relatedTo
|
gptkb:Placoderms
gptkb:Cyclostomes
|
|
gptkbp:reproduction
|
gptkb:unknown
|
|
gptkbp:significance
|
Early vertebrates
Predecessors to jawed vertebrates
|
|
gptkbp:subfamily
|
gptkb:Vertebrata
|
|
gptkbp:bfsParent
|
gptkb:Lower_Jurassic
|
|
gptkbp:bfsLayer
|
8
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Ostracoderms
|