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Biodiversity
12
Taxonomy
12
Acanthodii
10
Animalia
9
Chordata
9
Diplacanthidae
5
Placodermi
5
Gladiobranchus
3
Gladiobranchus probaton
3
Acanthodiformes
2
Gladiobranchidae
2
Mesacanthidae
2
Early Devonian
1
General Earth and Planetary Sciences
1
Lochkovian
1
Tetanopsyrus lindoei
1
Vertebrata
1
systematics
1
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