ammonites
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Subphylum Cephalochordata Haeckel 1866 (lancelet)

PaleoDB taxon number: 149948

Parent taxon: Chordata according to R. C. Brusca et al. 2016

Sister taxa: Metaspriggina, Olfactores, Pikaia, Undichna

Subtaxa: Leptocardii, Marsipobranchii, Palaeobranchiostoma, Yunnanozoon

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Ecology: