The ancestry of the vertebrates = L'ancêtre des vertébrésJEFFERIES, R. P. S.1986, VIII-376 p, isbn 0-565-00887-0Book

A backbone for the vertebrates = La colonne vertébrale des vertébrésGEE, H.Nature (London). 1989, Vol 340, Num 6235, issn 0028-0836, 596 [1 p.]Article

SOME FOSSILS CHORDATES WITH ECHINODERM AFFINITIES.JEFFERIES RPS.1967; SYMP.ZOOL.SOC.-LONDON.; 1967, NUM. 0020, P. 163 A 208Miscellaneous

A NEW CALCICHORDATE FROM THE ORDOVICIAN OF BOHEMIA AND ITS ANATOMY, ADAPTATIONS AND RELATIONSHIPSJEFFERIES RPS; PROKOP RJ.1972; BIOL. J. LINN. SOC.; G.B. ; 1972, VOL. 4, NUM. 0002, P. 69 A 115Serial Issue

A new stem-group chordate (Cornuta) from the Llandeilo of Czechoslovakia and the cornute-mitrate transitionCRIPPS, A. P.Zoological journal of the Linnean Society. 1989, Vol 96, Num 1, pp 49-85, issn 0024-4082, 37 p.Article

Modification of the paradigm for burrowing ribs in various gastropods, crustaceans and calcichordates = Modification du paradigme des stries liées à la construction des terriers sur les coquilles de nombreux gastropodes, crustacés et calcichordatesSAVAZZI, E; JEFFERIES, R. P. S; SIGNOR, P. W. III et al.Neues Jahrbuch für Geologie und Paläontologie. Abhandlungen. 1982, Vol 164, Num 1-2, pp 206-217, issn 0077-7749Article

ETUDE CRITIQUE DE QUELQUES ECHINODERMES STYLOPHORES DU MASSIF ARMORICAINCHAUVEL J.1982; BULL. SOC. GEOL. MINERAL. BRETAGNE; ISSN 0560-5466; FRA; DA. 1982; VOL. 13; NO 2; PP. 67-101; ABS. ENG; BIBL. 56 REF.; ILL./PL.Article

A new stem craniate from the Ordovician of Morocco and the search for the sister group of the craniataCRIPPS, A. P.Zoological journal of the Linnean Society. 1990, Vol 100, Num 1, pp 27-71, issn 0024-4082, 45 p.Article