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STRUCTURES COAPTATIVES ET ENROULEMENT CHEZ QUELQUES TRIBOBITES ORDOVICIENS ET SILURIENSCLARKSON ENK; HENRY JL.1973; LETHAIA; NORVEGE ; 1973, VOL. 6, NUM. 0002, P. 105 A 132Serial Issue

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THE CONODONT ANIMAL = L'ANIMAL CONODONTEBRIGGS DEG; CLARKSON ENK; ALDRIDGE RJ et al.1983; LETHAIA; ISSN 0024-1164; NOR; DA. 1983; VOL. 16; NO 1; PP. 1-14; BIBL. 1 P.; ILL.Article