The subphylum Calcichordata (Jeffries1967) primitive fossil Chordates with Echinoderm affinities
Jeffries, Richard Peter Spencer
Article
1968-07-02
Bulletin of the British Museum (Natural History) Geology
16
Issue: 6
241--340
BioStor
English
London, BM(NH),
BioStor: https://biostor.org/reference/265745 DOI: https://doi.org/10.5962/p.313838
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