NEW EXPOSURES ON FORESTRY ROADS NEAR LUDLOWLAWSON JD.1973; GEOL. J.; G.B. ; 1973, VOL. 8, NUM. 0002, P. 279 A 284Serial Issue

POST-LUDLOVIAN AND PRE-GEDINNIAN DEPOSITS IN POLAND.TOMCZYK H.1968; INT.GEOL.CONG.REPORT.OF.THE.23.SESSION-CZECHOSLOVAKIA-1968; 1968, VOL. 9, P. 133 A 144Miscellaneous

BENTHIC COMMUNITY ORGANIZATION IN THE LUDLOW SERIES OF THE WELSH BORDERLANDWATKINS R.1979; BULL. BRIT. MUS., NAT. HIST., GEOL.; GBR; DA. 1979; VOL. 31; NO 3; 106 P.; BIBL. 3 P.Serial Issue

CHITINOZOAN BIOSTRATIGRAPHY OF THE LUDLOVIAN-PRIDOLIAN BOUNDARY IN THE BARRANDIAN AREA = BIOSTRATIGRAPHIE DES CHITINOZOAIRES DE LA LIMITE LUDLOVIEN-PRIDOLIEN DANS LA REGION DU BARRANDIENPARIS F; KRIZ J.1981; RAPP. MEDD.-SVER. GEOL. UNDERS.; ISSN 0349-2176; SWE; DA. 1981; NO 25; PP. 25-26Conference Paper

Correlation of Upper Silurian trilobites in European sections = La corrélation des coupes du Silurien supérieur d'Europe par les trilobitesALBERTI, H; ALBERTI, L.Mezhdunarodnyj geologicheskij kongress. 27. 1984, 6Conference Paper

Evolutionary chains in the graptolite Bohemograptus bohemicus (BARR), a case for gradualism = L'évolution du graptolite Bohemograptus bohemicus (BARR): un cas de gradualismeURBANEK, A.Mezhdunarodnyj geologicheskij kongress. 27. 1984, pp 323-324Conference Paper

New Silurian trilobites from Bohemia = Nouveaux tribolites du Silurien en BohêmeSNAJDR, M.Věstník Ústředního ústavu geologického. 1983, Vol 58, Num 3, pp 175-178, issn 0042-4730Article

LUDLOW STAGES = ETAGES DU LUDLOWHOLLAND CH; LAWSON JD; WALMSLEY VG et al.1980; LETHAIA; ISSN 0024-1164; NOR; DA. 1980; VOL. 13; NO 3; PP. 268; BIBL. 7 REF.Article

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MICROPLANCTON DEL SILURICO SUPERIOR DE LA PROVINCIA DE SANTIAGO DEL ESTERO, REPUBLICA ARGENTINA = MICROPLANCTON DU SILURIEN SUP. DE LA PROVINCE DE SANTIAGO DEL ESTERO, REPUBLIQUE ARGENTINEPOETHE DE BALDIS ED.1972; AMEGHINIANA; ARGENT. ; 1972, VOL. 8, NUM. 0003-0004, P. 282 A 290Serial Issue

COMMENTS ON PAPER BY J.L. ROY, N.D. OPDYKE, AND E. IRVING, "FURTHER PALEOMAGNETIC RESULTS FROM THE BLOOMSBURG FORMATION".CREER KM.1969; J. GEOPHYS. RES.; USA; 1969(6), VOL. 74, NUM. 0012, P. 3299 A 3303Miscellaneous

THE FAUNAL-STRATIGRAPHY OF THE LUDLOVIAN ROCKS BETWEEN CRAVEN ARMS AND BOURTON,NEAR MUCH WENLOCK,SHROPSHIRE.SHERGOLD JH; SHIRLEY J.1968; GEOL. J.; GBR; 1968, VOL. 6, NUM. 0001, P. 119 A 138Miscellaneous

CONODONTS OF THE SKALA AND BORSCHOV HORIZONS OF PODOLIA.MASHKOVA TV.1967; INTERNAT.SYMPOSIUM.ON.THE.DEVONIAN.SYSTEM.CALGARY.ALBERTA.SOC.PETROLEM .GEOL.ALBERTA.; 1967, VOL. 2, P. 497 A 501Miscellaneous

THE MAME "WENLOCK LIMESTONE".LAWSON JD.1977; GEOL. J.; G.B.; DA. 1977; VOL. 12; NO 2; PP. 189-190; BIBL. 4 REF.Article

THE BOUNDARY BETWEEN THE WENLOCK AND LUDLOW SERIES.WHITE DE.1974; GEOL. MAG.; GBR; 1974, VOL. 111, NUM. 0005, P. 448 A 449Serial Issue

A STRATIGRAPHICAL SYNOPSIS OF THE LONG MOUNTAIN, MONTGOMERYSHIRE AND SHROPSHIRE.PALMER D.1970; PROC. GEOL. SOC. LONDON; GBR; 1970(3), NUM. 1660, P. 341 A 346Miscellaneous

THELODONTS FROM UPPER SILURIAN ERRATIC BOULDER O.410.HALSTEAD LB; TURNER S.1970; PROC. GEOL. SOC. LONDON; GBR; 1970(3), NUM. 1660, P. 335 A 340Miscellaneous

SILURIAN ROCKS AND FOSSILS AT HAILES KNOB, NORTH-WEST NELSON, NEW ZEALANDCOOPER RA; WRIGHT AJ.sdNEW ZEAL. J. GEOL. GEOPHYS.; NEW ZEAL. ,1972, VOL. 15, NUM. 0009, P. 318 A 335Serial Issue

FORMATIONS DU SILURIEN SUPERIEUR DE LA PARTIE CONTINENTALE D'ESTONIEKALA EH.1976; IZVEST. AKAD. NAUK ESTON. S.S.R., KHIM. GEOL.; S.S.S.R.; DA. 1976; VOL. 25; NO 3; PP. 260-262; BIBL. 6 REF.; 1 ILL.Article

ON THE PHYLOGENETIC POSITION OF THE GENUS BOUCOTINSKIA BRUNTON AND COKS, 1967 (SPIRIFERIDA).KRANS TF.1973; LEIDSE GEOL. MEDED.; NEDERL.; 1973, VOL. 49, NUM. 0002, P. 277 A 283Serial Issue

SUR L'AGE D'UNE COUCHE A AGNATHES ET A EURYPTERIDAE A LA BASE DU GRES DE RINGERIK.(RESUME).HEINTZ A.1968; GEOL. FOEREN. STOCKHOLM FOERH.; SWE; 1968(9), VOL. 90, NUM. 0534-003Miscellaneous

PRIMA SEGNALAZIONE DI CONODONTI NEL SILURIANO DELLA SARDEGNA E RELATIVE OSSERVAZIONI STRATIGRAFICHE.SERPAGLI E.1967; ATTI ACCAD. NAZION. LINCEI, R.C., CL. SCI. FIS. MAT. NAT., ITAL; ITA; 1967(6), VOL. 42, P. 856 A 858Miscellaneous

SILURIAN ROCKS AND FOSSILS AT HAILES KNOB, NORTH-WEST NELSON, NEW ZEALANDCOOPER RA; WRIGHT AJ.sdNEW ZEAL. J. GEOL. GEOPHYS.; NEW ZEAL. ,1972, VOL. 15, NUM. 0009, P. 318 A 335Serial Issue

Baterospirifer, un nouveau genre de brachiopode eospiriféridé du Silurien supérieurRONG JIA-YU; SUYANG-SHENG; LI WEN-GUO et al.Gǔshēngwùxué bào. 1984, Vol 23, Num 1, pp 62-68, issn 0001-6616Article

Evolution and environment in the late Silurian and early Devonian, meeting of the Royal Society in May 1984, London = Evolution et environnement au Silurien supérieur et au Dévonien inférieur; Réunion de la Royal Society; mai 1984; LondresCHALONER, W. G; LAWSON, J. D.Royal society. Meeting. 1985, isbn 0-85403-243-6, 342 p., isbn 0-85403-243-6Conference Proceedings