ecofactbook
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species
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Animalia
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Chordata
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Actinopterygii
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Notacanthiformes
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Halosauridae
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Halosaurus
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Halosaurus attenuatus
Halosaurus carinicauda
Halosaurus guentheri
Halosaurus johnsonianus
Halosaurus ovenii
Halosaurus pectoralis
Halosaurus radiatus
Halosaurus ridgwayi
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Halosaurus attenuatus