Middle and upper Ordovician bradiopods from the Iberian chain (NE Spain) = Brachiopodes de l'Ordovicien moyen et supérieur dans la chaîne ibérique (NE de l'Espagne)VILLAS, E.International symposium on the Ordovician System. 4. 1982, 55Conference Paper

Acritarchs and the definition of the bases of the global stages in the Lower and Middle OrdovicianSERVAIS, T; LI, J; RAEVSKAYA, E et al.Documents des laboratoires de géologie (Lyon). 2002, Num 156, issn 0750-6635, p. 215Conference Paper

REWORKED ACRITARCHS FROM THE TYPE SECTION OF THE ORDOVICIAN CARADOC SERIES, SHROPSHIRE = ACRITARCHES REMANIES PROVENANT DE LA SECTION TYPE DES SERIES CARADOC ORDOVICIENNES, SHROPSHIRETURNER RE.1982; PALAEONTOLOGY; ISSN 0031-0239; GBR; DA. 1982; VOL. 25; NO 1; PP. 119-143; BIBL. 2 P.; 3 PLANCH. ; ESQUISSE/ESQUISSE GEOL./PL./ILL.Article

The age of the Tavsens Iskappe group, central North Greenland = L'âge du Groupe Tavsens Iskappe, centre du Nord du GroenlandPEEL, J. S.1982, Num 108, issn 0418-6559, 30Article

Lithology of phosphorite-bearing deposits from the Aksu-Bailyusta Zone, North Kazakhstan = Lithologie des dépôts de phosphorite de la zone Aksu-Bailyusta, Kazakhstan NordALADZHIEV, V. S.Lithology and mineral resources. 1981, Vol 16, Num 2, pp 174-182, issn 0024-4902Article

Ordovik khr. Kara-Dzhorgo (Severnyj Tyan'-Shan')ZIMA, M.B; MAKSUMOVA, R.A.Izvestiâ Akademii nauk SSSR. Seriâ geologičeskaâ. 1990, Num 2, pp 74-81, issn 0321-1703Article

Age palynologique du Blastomilonitic Grabben, zone occidentale de la GaliceFOMBELLA BLANCO, M. A.Revue de Micropaléontologie. 1984, Vol 27, Num 2, pp 113-117, issn 0035-1598Article

SKIDDAW SLATES AND THE BORROWDALE VOLCANICS.WADGE AJ; HELM DG; ROBERTS B et al.1971; NATURE PHYS. SCI.; 1971, VOL. 234Miscellaneous

ETUDE DE LA STRATIGRAPHIE ET DES FOSSILES DE L'ORDOVICIEN MOYEN ET SUP DE WUDANG, GUIYANGYANG SHENG WU; WANG KE YONG.1980; DICENGXUE ZAZHI; ISSN 548421; CHN; DA. 1980; VOL. 4; NO 2; PP. 154-157; BIBL. 6 REF.; 1 TAB. ; TABL./COUPE GEOL.Article

ALGUNOS OSTRACODOS DEL LLANDEILIENSE-CARADOCIENSE DE LA REPUBLICA ARGENTINA = QUELQUES OSTRACODES DU LLANDEILIEN ET DU CARADOC D'ARGENTINE1972; REV. ESP. MICROPALEONTOL.; ESP.; 1972, VOL. 4, NUM. 0001, P. 19 A 22Serial Issue

THE AGE OF THE EARLY TREMADOCIAN AND OF THE SAUKIA ZONE AND THE BOUNDARY BETWEEN CANIBRIAN AND ORDOVICIAN.WOLFART R.1970; NEWSLETTERS STRATIGR.; NLD; 1970(3), VOL. 1, NUM. 0001, P. 10 A 18Miscellaneous

AGE OF THE BEKE SUITE IN THE CHU-ILI MOUNTAINS.MIKHAJLOVA NF; CAJ DT.1969; DOKL. EARTH SCI. SECT.; USA; 1969, VOL. 188, P. 73 A 74Miscellaneous

Upper Middle and Upper Ordovician conodont biostratigraphy of the North American Midcontinent = Biostratigraphie des conodontes de l'Ordovicien moyen et supérieur du Midcontinent d'Amérique du NordSWEET, W. C.Mezhdunarodnyj geologicheskij kongress. 27. 1984, 316Conference Paper

Las formaciones del Ordovicico medio y superior de las Cadenas Heircas y su fauna de braquiopodos = Les formations de l'Ordovicien moyen et supérieur des chaînes Ibériques et leur faune de brachiopodesVILLAS, E.Estudios Geológicos (Madrid). 1983, Vol 39, Num 5-6, pp 359-377, issn 0367-0449Article

CHITINOZOAIRES DE L'ARENIG SUPERIEUR-LLANVIRN INFERIEUR EN CONDROZ (BELGIQUE).MARTIN F.1969; REV. MICROPALEONTOL.; FRA; 1969(9), VOL. 12, NUM. 0002, P. 99 A 106Miscellaneous

RAPPORT ENTRE LES GENRES SARCINULA, CALAPOECIA ET LYOPORA (TABULATAPREOBRAZHENSKIJ B; KLAAMANN EH.1975; IZVEST. AKAD. NAUK ESTON. S. S. R., KHIM. GEOL.; SUN; 1975, VOL. 24, NUM. 0002, P. 130 A 136Serial Issue

MICROFOSSILS FROM THE CLEAVED SKIDDAW SLATES OF MURTON PIKE AND BROWNBER (CROSS FELL INLIER).LISTER TR; BURGESS IC; WADGE AJ et al.1969; GEOL. MAG.; GBR; 1969(2), VOL. 106, NUM. 0001, P. 97 A 99Miscellaneous

THE ORDOVICIAN FROM BOREHOLES DOBRE 1 AND SOKOLOW PODLASKI 1 (WESTERN PART OF THE PODLASIE DEPRESSION).BEDNARCZYK W.1969; ACTA GEOL. POLON.; POL; 1969(12), VOL. 19, NUM. 0004, P. 779 A 791Miscellaneous

THE AGE OF THE DURINE MEMBER OF THE DURNESS LIMESTONE FORMATION AT DURNESS.HIGGINS AC.1967; SCOTT. J. GEOL.; GBR; 1967, VOL. 3, NUM. 0003, P. 382 A 388Miscellaneous

Comments on the definition of the Ordovician-Silurian boundary = Commentaires concernant la limite entre l'Ordovicien et le SilurienKOREN, T; NIKITIN, I.Eesti NSV teaduste akadeemia toimetised. Geoloogia. 1983, Vol 32, Num 3, pp 96-100, issn 0201-8136Article

El Ordovícico en el Macizo Ibérico = L'ordovicien du Massif IbériqueJULIVERT, M; TRUYOLS, J.Libro Jubilar J. M. Rios. Geologia de España. 1983, pp 192-246, isbn 84-500-8925-5Book Chapter

THE AGE AND SIGNIFICANCE OF A SMALL LOWER PALAEOZOIC INLIER IN COUNTY MAYO = L'AGE ET LA SIGNIFICATION D'UNE PETITE FENETRE DU PALEOZOIQUE INFERIEUR DANS LE COMTE MAYOGRAHAM JR; SMITH DG.1981; J. EARTH SCI.; ISSN 501506; IRL; DA. 1981; VOL. 4; NO 1; PP. 1-5; BIBL. 14 REF.; ESQUISSEArticle

RELATIONSHIP BETWEEN THE SKIDDAW SLATES AND THE BORROWDALE VOLCANICS.JEANS PJF; HELM DG; ROBERTS B et al.1971; NATURE PHYS. SCI.; 1971, VOL. 234, NUM. 0046, P. 59 A 60Miscellaneous

CATALOG OF MIDDLE AND UPPER ORDOVICIAN FOSSILS.AMSDEN TW.1957; OKLAHOMA GEOL. SURV., CIRC.; 1957, NUM. 0043, P. 1 A 41Miscellaneous

SEGMENTIROVANNYE STEBLI NEKOTORYKH ORDOVIKOKIKH MORSHIKH LILIJ VOLYNI = LES TIGES SEGMENTEES DE QUELQUES CRINOIDES DE L'ORDOVICIEN DE VOLHYNIEGINDA VA.1979; PALEONTOL. SB. (L'VOV); ISSN 0131-2634; SUN; DA. 1979; NO 16; PP. 68-72; ABS. ENG; BIBL. 15 REF.; 1 PLANCH. ; ILL./PL.Article