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gptkbp:instanceOf
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class of armored prehistoric fish
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gptkbp:characteristic
|
paired fins
bony armored plates covering head and thorax
jaws present
no true teeth, but bony plates
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gptkbp:class
|
gptkb:Placodermi
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gptkbp:describedYear
|
1833
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gptkbp:discoveredBy
|
gptkb:Louis_Agassiz
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gptkbp:distribution
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worldwide
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gptkbp:diversityPeak
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gptkb:Devonian_period
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gptkbp:etymology
|
from Greek 'plakos' (plate) and 'derma' (skin)
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gptkbp:extinct
|
gptkb:Late_Devonian_extinction
true
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gptkbp:firstAppearance
|
gptkb:Early_Silurian
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gptkbp:fossilRange
|
Silurian to Devonian
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gptkbp:habitat
|
gptkb:marine
freshwater
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|
https://www.w3.org/2000/01/rdf-schema#label
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Placodermi
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gptkbp:kingdom
|
gptkb:Animalia
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gptkbp:lastAppearance
|
end of Devonian
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gptkbp:notableMember
|
gptkb:Coccosteus
gptkb:Bothriolepis
gptkb:Dunkleosteus
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gptkbp:phylum
|
gptkb:Chordata
|
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gptkbp:range
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few centimeters to over 6 meters
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|
gptkbp:reproduction
|
some species showed internal fertilization
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gptkbp:significance
|
among earliest jawed vertebrates
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gptkbp:subfamily
|
gptkb:Vertebrata
|
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gptkbp:bfsParent
|
gptkb:Bothriolepis
gptkb:Dunkleosteus
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gptkbp:bfsLayer
|
5
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