The subphylum Calcichordata (Jefferies 1967)
Subtitle: primitive fossil chordates with echinoderm affinities.
Series: Bulletin of the British Museum (Natural History).; v. 16, no. 6
Publisher: British Museum (Natural History)
Published: 1968
Place of publication: London
Language: eng
Number of pages: 339
Subjects: Chordata, Fossil.; Echinodermata, Fossil.
Notes: Bibliography: p. 336-339.