Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a retraction,
withdrawal, or removal notice.
The 45 references without a DOI — listed, not checked
no DOI — not checkedAssereto, R. &Folk, R.L. (1980): Diagenetic fabrics of aragonite, calcite, and dolomite in an ancient peritidal-spelean environment: Triassic Calcare Rosso, Lombardia, Italy.—J. Sed. Petrol.50, 371–394, 17 Figs., Tulsa
no DOI — not checkedBecker, R.T. (1990): Stratigraphische Gliederung und Ammonoideen-Faunen im Nehdenium (Oberdevon II) von Europa und Nord-Afrika.—Diss. Fak. Geowiss. Ruhr-Univ. Bochum, 464 p., 26 Pl., 99 Figs., 2 Tables, Bochum
no DOI — not checkedBecker, R.T., Feist, R., Flais, G., House, M.R. &Klapper, G. (1989a): Frasnian-Famennian extinction events in the Devenian at Coumiac, southern France.—C.R. Acad. Sci. Paris309, 259–266, 3 Figs., Paris
no DOI — not checkedBecker, R.T., House, M.R. & Ashouri, A.-R. (1989b): The Frasnian/Famennian boundary at El Atrous, Tafilalt, Morocco. —Document submitted to the Devonian Subcommission IUGS, Washington—July 1989, 10 p., 7 Figs., Washington
no DOI — not checkedBensaid, M., Bultynck, P., Sartenaer, P., Walliser, O.H. &Ziegler, W. (1985): The Givetian-Frasnian boundary in pre-Sahara Morocco.—Courier Forsch.—Inst. Senckenberg75, 287–300, 8 Figs., 1 Table, Frankfurt/Main
no DOI — not checkedBuggisch, W. (1972): Zur Geologie und Geochemie der Kellwasserkalke und ihrer begleitenden Sedimente (Unteres Oberdevon). —Hess. Landesamt Bodenforsch., Abh.62, 1–68, 13 Pls., 19 Figs., 6 Tables, Wiesbaden
no DOI — not checkedBuggisch, W. &Clausen, C.D. (1972): Conodonten- und Goniatiten-Faunen aus dem oberen Frasnium und unteren Famennium Marokkos (Tafilalt, Antiatlas).—N. Jb. Geol. Paläont., Abh.141, 137–167, 8 Figs., 3 Tables, Stuttgart
no DOI — not checkedBultynck, P. (1986): Accuracy and reliability of conodont zones: thePolygnathus asymmetricus ‘zone’ and the Givetian-Frasnian-boundary. —Bull. Inst. Sci. Belg. Sciences de la Terre56, 269–280, 2 Pls., 3 Figs., 1 Table, Bruxelles
no DOI — not checkedDestombes, J., Hollard, H. &Willefert, S. (1985): Lower Palaeozoic rocks of Morocco.—InHolland, C.H. (ed.): Lower Palaeozoic Rocks of North-Western and West-Central Africa, 91–336, 68 Figs., 7 Tables, Chichester (Wiley)
no DOI — not checkedDreesen, R., Paproth, E. & Thorez, J. (1988): Events documented in Famennian sediments (Ardenne-Rhenish Massif, Late Devonian, NW Europe).—In:McMillan, N.J., Embry, A.F. & Glass, D.J. (eds.): Devonian of the World, Canad. Soc. Petrol. Geol. Memoir14, vol. II, 295–308, 8 Figs., Calgary
no DOI — not checkedEttensohn, F.R., Miller, M.L., Dillman, S.B., Elam, T.D., Geller, K.L., Swager, D.R., Markowitz, G., Woock, R.D. & Barron, L.S. (1988): Characterization and implications of the Devonian-Mississippian black-shale sequence, eastern and central Kentucky, U.S.A.: pycnoclines, transgression, regression and tectonism.—InMcMillan, N.J., Embry, A.F. & Glass, D.J. (eds.): Devonian of the World, Canad. Soc. Petrol. Geol. Memoir14, vol. II, 323–345, 24 Figs., 2 Tables, Calgary
no DOI — not checkedFabre, J. (1976): Introduction à la géologie du Sahara algérien et des regions voisines. I. La couverture phanérozoique. Avec la collaboration de R. Caby, M. Girod, A. Moussine-Pouchkine. —422 p., Alger (Societé Nationale d’Edition et de Diffusion)
no DOI — not checkedFeist, R. (1985): Devonian stratigraphy of the southeastern Montagne Noire France).—Courier Forsch.-Inst. Senckenberg75, 331–352, 4 Figs., Frankfurt/Main
no DOI — not checkedFeist, R. (ed.) (1990): The Frasnian-Famennian boundary and adjacent strata of the eastern Montagne Noire, France.—IUGS Subcommission on Devonian Stratigraphy, Field Meeting 1990, Guide book, 69 p., Montpellier
no DOI — not checkedFolk, R.L. &Assereto, R. (1976): Comparative fabrics of length-slow and length-fast calcite and calcitized aragonite in a Holocene speleothem, Carlsbad Caverns, New Mexico.—J. Sedim. Petrol.46, 486–496, 11 Figs., Tulsa
no DOI — not checkedHarland, W.B., Armstrong, R.L., Cox, A.V., Craig, L.E., Smith, A. G. & Smith, D.G. (1990): A geologic time scale 1989. Cambridge Earth Sci. Ser., 263 p., Cambridge
no DOI — not checkedHarland, W.B., Cox, A.V. Llewellyn, P.G., Pickton, C.A.G., Smith, A.G. & Walters, R. (1982): A geologic time scale.— Cambridge Earth Sci. Ser., 131 p., 42 Figs., 7 Tables, Cambridge
no DOI — not checkedHerbin, J.P., Magniez-Jannin, F. &Muller, C. (1986): Mesozoic organic rich sediments in the South Atlantic: distribution in time and space.—Mitt. Geol.-Paläont. Inst. Univ. Hamburg60, 71–97, 19 Figs., Hamburg
no DOI — not checkedHollard, H. (1960): Une phase tectonique intra-famennienne dans le Tafilalt et le Maider (Maroc présaharien).—C. R. Acad. Sci.,250, 1303–1305, Paris
no DOI — not checked— (1961): Caractère transgressif du Frasnien supérieur dans le Maider (Maroc présaharien).—C.R. somm. Soc. géol. France1961, 41–42, Paris
no DOI — not checkedHollard, H. (1967): Le Dévonien du Maroc et du Sahara nord-occidental. —In:Oswald, D.H. (ed.): Intern. Symp. on the Devonian System,1, 203–244, 16 Figs., Calgary
no DOI — not checked— (1974): Recherches sur la stratigraphie des formations du Dévonien moyen, de l’Emsien supérieur au Frasnien, dans le Sud du Tafilalt et dans le Ma’der (Anti-Atlas oriental).—Notes et Mém. Serv. Géol. Maroc264, 7–68, 9 Figs., Rabat
no DOI — not checkedHouse, M.R. & Becker, R.T. (1986): Comments on Devonian ammonoid biostratigraphy in the Sub-Sahara resulting from brief visits.—Internal Report (unpublished), 50 p., 4 Figs.
no DOI — not checkedJohnson, J.G. & Sandberg, C.A. (1988): Devonian eustatic events in the western United States and their biostratigraphic responses.—In:McMillan, N.J., Embry, A.F. & Glass, D.J. (eds.): Devonian of the World, Canad. Soc. Petrol. Geol. Memoir14, vol. III, 171–178, 2 Figs., Calgary
no DOI — not checkedLehman, J.-P. (1956): Les Arthrodires du Dévonien supérieur du Tafilalet (Sud marocain).—Notes et Mém. Serv. Géol. Maroc129, 70 p., 24 Pls., 15 Figs., Rabat
no DOI — not checkedMassa, D. (1965): Observations sur les séries siluro-dévoniennes des confins algéro-marocaines du Sud (1954–1955).—Notes et Mém. Compagnie Franç. Pétrol.8, 1–187, 11 Pls., 18 Figs., Paris
no DOI — not checkedMichard, A. (1976): Eléments de géologie marocaine.—Notes et Mém. Serv. Géol. Maroc252, 1–408, 6 Pls., 221 Figs., Rabat
no DOI — not checkedNarkiewicz, M. (1988): Turning points in sedimentary development in the Late Devonian in southern Poland.—In:McMillan, N.J., Embry, A.F. & Glass, D.J. (eds.): Devonian of the World, Canad. Soc. Petrol. Geol. Memoir14, vol. II:, 619–635, 16 Figs., Calgary
no DOI — not checked— (1989): Event geology: the roots of a new discipline.—Przeglad Geol.1989/11, 533–537, 4 Figs., Warszawa
no DOI — not checkedRabien, A. (1956): Zur Stratigraphie und Fazies des Ober-Devons in der Waldecker Hauptmulde.—Abh.hess. L.-Amt Bodenforsch.16, 83 p., 3 Pls., 2 Figs., 2 Tables, Wiesbaden
no DOI — not checkedRobl, T.L. & Barron, L.S. (1988): The geochemistry of Devonian black shales in central Kentucky and its relationship to inter-basinal correlation and depositional environment.—In:McMillan, N.J., Embry, A.F. & Glass, D.J. (eds.): Devonian of the World, Canad. Soc. Petrol. Geol. Memoir14, vol. II, 377–392, 11 Figs., 4 Tables, Calgary
no DOI — not checkedSandberg, C.A., Ziegler, W. &Bultynck, P. (1989): New standard conodont zones and earlyAncyrodella phylogeny across Middle-per Devonian boundary.—Courier Forsch.— Inst. Senckenberg110, 195–230, 5 Pls., 4 Figs., Frankfurt/Main
no DOI — not checkedSandberg, C.A., Ziegler, W., Dreesen, R. &Butler, J.L. (1988): Late Frasnian mass extinction: conodont event stratigraphy, global changes, and possible causes.—Courier Forsch.— Inst. Senckenberg102, 263–307, 2 Pls., 15 Figs., 3 Tables, Frankfurt/Main
no DOI — not checkedSchindler, E. (1990): Die Kellwasser-Krise (hohe Frasne-Stufe, Ober-Devon).—Göttinger Arb. Geol. Paläont.46, 115 p., 5 Pls., 43 Figs., 6 Tables. Göttingen
no DOI — not checkedSchöll, W.U. &Wendt, J. (1971): Obertriadische und jurassische Spaltenfüllungen im Steinernen Meer (Nördliche Kalkalpen). N. Jb. Geol. Paläont. Abh.139/1, 82–98, 10 Figs., 1 Table, Stuttgart
no DOI — not checkedSeilacher, A. (1968): Sedimentationsprozesse in Ammonitengehäusen. —Akad. Wiss. Liter., Abh. math.-naturw. Kl.,1967, 189–204, 1 Pl., 5 Figs., Mainz
no DOI — not checkedSeilacher, A., Drozdzewski, G. &Haude, R. (1968): Form and function of the stem in a pseudoplanktonic crinoid (Seirocrinus). —Palaeontology11/2, 275–282, 1 Pl., 3 Figs., London
no DOI — not checkedStackelberg, U. v. (1972): Faziesverteilung in Sedimenten des indisch-pakistanischen Kontinentalrandes (Arabisches Meer). —‘Meteor’ Forschungsergebnisse C,9, 1–73, 3 Pls., 29 Figs., 3 Tables, 49 Diag., Berlin
no DOI — not checkedStribrny, B. &Urban, H. (1989): Lagerstättenbildende, supergene Umlagerungsprozesse in Schwarszschiefern.—Erzmetall42/ 7–8, 348–350, 2 Figs.
no DOI — not checkedUlmishek, G.F. (1988): Upper Devonian-Tournaisian facies and oil resources of the Russian craton’s eastern margin.—In:McMillan, N.J., Embry, A.F. & Glass, D.J. (eds.): Devonian of the World, Canad. Soc. petrol. Geol. Memoir14, vol. I, 527–549, 16 Figs., Calgary
no DOI — not checkedWalliser, O.H., Groos-Uffenorde, H., Schindler, E. &Ziegler, W. (1989): On the Kellwasser Horizon (Boundary Frasnian/Famennian). —Courier Forsch.-Inst. Senckenberg110, 247–255, 6 Figgs, Frankfurt/Main
no DOI — not checkedWendt, J. (1971): Genese und Fauna submariner sedimentärer Spaltenfüllungen im mediterranen Jura.—Palaeontographica Abt. A,136, 122–192, 4 Pls., 20 Figs., 7 Tables, Stuttgart
no DOI — not checked— (1988a): Condensed carbonate sedimentation in the late Devonian of the eastern Anti-Atlas (Morocco).—Eclogae geol. Helv.81, 155–173, 13 Figs, Basel
no DOI — not checkedWendt, J. (1988b): Facies pattern and paleogeography of the Middle and Late Devonian in the eastern Anti-Atlas (Morocco).—In:McMillan, N.J., Embry, A.F. & Glass, D.J. (eds.): Devonian of the World, Canad. Soc. Petrol. Geol. Memoir14, vol. I, 467–480, 8 Figs., Calgary
no DOI — not checkedZiegler, W. &Sandberg, C.A. (1990): The Late Devonian standard conodontzonation. Courier Forsch.-Inst. Senckenberg121, 1–115, 17 Pls., 11 Figs., 7 Tables, Frankfurt(Main)
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