T. K. Al-ameri, Acid-resistant microfossils used in the determination of Palaeozoic palaeoenvironments in Libya, Palaeogeography, Palaeoclimatology, Palaeoecology, vol.44, issue.1-2, pp.103-709, 1983.
DOI : 10.1016/0031-0182(83)90007-X

T. K. Al-ameri, Chitinozoa of the Tanezzuft and Acacus Formations, Libya. Iraqi Journal 711 of Sciences, vol.30, pp.203-242, 1989.

. Becip, Regional subsurface biostratigraphy of Ghadamas Basin (Internal Report) National 713, 1974.

A. Bourahrouh, Chitinozoaires et Palynomorphes de l'Ordovicien supérieur Nord- 716 gondwanien; Impact de la Glaciation Ashgilienne, 2002.

S. J. Braddy, Eurypterid palaeoecology: palaeobiological, ichnological and comparative evidence for a ???mass???moult???mate??? hypothesis, Palaeogeography, Palaeoclimatology, Palaeoecology, vol.172, issue.1-2, p.720, 2001.
DOI : 10.1016/S0031-0182(01)00274-7

A. Butcher, EARLY LLANDOVERY CHITINOZOANS FROM JORDAN, Palaeontology, vol.51, issue.3, pp.593-629, 2009.
DOI : 10.1111/j.1475-4983.2009.00862.x

A. Butcher, Chitinozoans from the middle Rhuddanian (lower Llandovery, Silurian) 'hot' 723 shale in the E1-NC174 core, Review of Palaeobotany, p.724, 2012.

Y. Wang, Late Ordovician to earliest Silurian gaptolite and brachiopod biozonation 727 from the Yangtze region, South China, with a global correlation, Geological Magazine, vol.137, issue.728, pp.623-650, 2000.

D. Costa and N. M. , Quitinozoários silurianos do Igarapé da Rainha, Estado do Para, p.734, 1971.

A. Delabroye and M. Vecoli, The end-Ordovician glaciation and the Hirnantian Stage: A global review and questions about Late Ordovician event stratigraphy, Earth-Science Reviews, vol.98, issue.3-4, pp.269-282, 2010.
DOI : 10.1016/j.earscirev.2009.10.010

J. K. Dorning, Silurian acritarch distribution in the Ludlovian shelf sea of South Wales 743 and the Welsh Borderland, Microfossils from Recent 744 and Fossil Shelf Seas, pp.31-36, 1981.

D. K. Loydell, Graptolites from the Upper Ordovician and Lower Silurian of Jordan, p.793, 2007.

S. ). Llandovery, Murzuq Basin (Libya), Bulletin of Geosciences, vol.87, pp.651-660

S. Lüning, J. Craig, D. K. Loydell, P. ?torch, and B. Fitches, Lower Silurian 'hot shales, p.797, 2000.

S. Lüning, Y. M. Shahin, D. Loydell, H. T. Al-rabi, A. Masri et al., Anatomy of a world-class source rock: Distribution and depositional model of 801, 2005.

S. Lüning, D. K. Loydell, P. ?torch, Y. Shain, and J. Craig, Origin, sequence stratigraphy, p.804, 2006.

M. J. Melchin, Restudy of some Ordovician?Silurian boundary graptolites from Anticosti 807, 2008.

M. J. Melchin and S. H. Williams, A restudy of the Akidograptine graptolites from Dob' Linn 809 and a proposed redefined zonation of the Silurian stratotype, In: Cockel P, p.810, 2000.

. Down-under, Geological Society of Australia, Abstracts 61, p.812, 2000.

S. G. Molyneux and F. Paris, Late Ordovician Palynomorphs, Palynostratigraphy of North-East Libya, pp.11-26, 1985.
DOI : 10.1144/jm.4.1.11

F. Paris, Late Ordovician and Early Silurian chitinozoans from central and southern 815, 1988.

. Cyrenaica, Subsurface palynostratigraphy 816 of Northeast Libya, pp.61-71

F. Paris, The Ordovician chitinozoan biozones of the Northern Gondwana domain, Review of Palaeobotany and Palynology, vol.66, issue.3-4, p.818, 1990.
DOI : 10.1016/0034-6667(90)90038-K

F. Paris, J. Verniers, S. Al-hajri, and H. Al-tayyar, Biostratigraphy and palaeogeographic 823 affinities of Early Silurian chitinozoans from central Saudi Arabia, pp.75-90, 1995.

M. Elgadry and A. G. Whitham, Palynological and palynofacies analysis of early 834, 2012.

. Llandovery, phtanites " at Les Fresnaies (Chalonnes-sur-Loire, southeastern Armorican, p.845

. Massif, Palaeontology and biostratigraphy, Bulletin of Geosciences, vol.84, pp.41-50

J. B. Richardson, Late Ordovician and Early Silurian cryptospores and miospores from 847 northeast Libya, Subsurface 848 palynostratigraphy of northeast Libya, pp.89-109, 1988.

A. Soufiane and A. Achab, Chitinozoan zonation of the Late Ordovician and the Early 853, 2000.

F. L. Staplin, Sedimentary organic matter, organic metamorphism, and oil and gas 856 occurrences, Bulletin of Canadian Petroleum Geology, vol.17, pp.47-66, 1969.

P. ?torch, The basal Silurian Akidograptus ascensus-Parakidograptus acuminatus 858, 1996.

P. ?torch and D. K. Loydell, The Hirnantian graptolites Normalograptus persculptus and 861 'Glyptograptus' bohemicus: stratigraphical consequences of their synonymy, Palaeontology, vol.862, pp.39-869, 1996.

P. Taugourdeau, Association de Chitinozoaires dans quelques sondages de la région de 864, 1962.

T. R. Vandenbroucke, An Upper Ordovician chitinozoan biozonation in British 875, 2008.

T. R. Vandenbroucke, B. Rickards, and J. Verniers, Upper Ordovician chitinozoan 877 biostratigraphy from the Asghill (Cautley district) and Pus Gill section, p.878, 2005.

J. Verniers and T. R. Vandenbroucke, Chitinozoan biostratigraphy in the Dob's Linn 883, 2006.

B. D. Webby, R. A. Cooper, S. M. Bergström, and F. Paris, Stratigraphic Framework and time 888 slices The Great Ordovician 889, 2004.

S. H. Williams and J. K. Ingham, Stratotypes, 4. The Ordovician-Silurian boundary at Dob's 893, 1989.

. Richardson, Slide no. 6782-5. Core sample at 67.82 m depth. England 970 finder location, pp.31-33, 1993.

. Richardson, England finder 979 location: J29-2. 980 4: Veryhachium lairdii group (Deflandre) Deunff, 1954 ex Loeblich Slide no. 981 6782-5. Core sample at 67.82 m depth England finder location: W28. 982 5: Archaeozonotriletes chulus var. chulus (Cramer) Richardson & Lister, 1969. 983 Slide no. 6759. Core sample at 67.59 m depth. England finder location: J29-3. 984 6: Dyadosphaera murusdensa Strother & Traverse, 1979. Slide no. 6782. Core 985 sample at 67.82 m depth. England finder location: F21-1. 986 7: Tasmanites sp. Slide no. 4818. Core sample at 48.18 m depth, England finder 987 location: J41. 988 8: Veryhachium lairdii group (Deflandre) Deunff, 1954 ex Loeblich, pp.21-22, 1970.

L. Euconochitina-moussegoudaensis-paris and . Hérissé, Short thickset specimen Euconochitina cf. moussegoudaensis Paris Core 1159 sample at 46.60 m depth; IGR 72954 (H40) Elongate and slender specimen 1160 showing a supra-margin constriction. 1161 3: Euconochitina cf. moussegoudaensis Paris Core 1162 sample at 48.18 m depth; IGR 72957 (H50/1) Very long specimen Core sample 1164 at 50.73 m depth; IGR 72962 (M46) Teratological specimen with a sleeve 1165 gaining the lower vesicle and extending around the succeeding one . 1166 5: Euconochitina moussegoudaensis Paris Core sample at 1167 50.73 m depth; IGR 72958 (R40/3) 1168 6: Euconochitina moussegoudaensis Paris Core sample at 1169 55.07 m depth; IGR 72959 (S36) 1170 7: Euconochitina moussegoudaensis Paris Core sample at 1171 60.23 m depth; IGR 72965 (M39/1) Short specimen. 1172 8, 10: Euconochitina moussegoudaensis Paris Core sample at 1173 64.02 m depth; IGR 72967 10: short specimen (G41/2) 1174 9: Euconochitina cf. moussegoudaensis Paris Elongate and slender specimen 1176 with a supra-margin constriction. 1177 11: Euconochitina cf. moussegoudaensis Paris Core 1178 sample at 65.74 m depth; IGR 72968 (O42) Elongate and slender specimen with 1179 a supra-margin constriction. 1180 12: Euconochitina moussegoudaensis Paris Short and thickset specimen. 1182 13: Calpichitina sp. Core sample at 66.85 m depth 1183 14?16: Euconochitina moussegoudaensis Paris Core sample at 1184 66.85 m depth, Plate X. Scale bar = 100 ?m, except for 13 and 21b Le Hérissé et al.L45) 1185 17: Ancyrochitinidae indet. Core sample at 67.05 m depth (H44). 1186 18: Euconochitina moussegoudaensis ParisK49/1). 1191 21a?b: Spinachitina cf. S. oulebsiri Paris et al, pp.19-1192, 1158.

P. Spinachitina, Core 1198 sample at 67.21 m depth; IGR 72975 (M45) Specimen showing a conspicuous 1199 supra-margin constriction. 1200 3: Euconochitina cf. moussegoudaensis Paris Core 1201 sample at 67.21 m depth; IGR 72975 1202 4: Spinachitina cf. verniersi Vandenbroucke Core 1203 sample at 67.40 m depth; IGR 72976 (M38/2) Short specimen. 1204 5: Euconochitina cf. moussegoudaensis Paris Core 1205 sample at 67.40 m depth; IGR 72976 (035) 1206 6: Spinachitina oulebsiri Core sample at 67.59 m depth Abnormally short specimen. 1208 7?10: Spinachitina oulebsiri Core sample at 67.59 m depth; 72982. 7: 1209 short specimen (M45) 8: (O36). 9: slender specimen (V49) 10: (O47) 1210 11: Euconochitina cf. moussegoudaensis Paris Elongate and slender specimen with a 1212 supra-margin constriction and a uncommon well-developed neck. 1213 12: Euconochitina sp. aff. vitrea (Taugourdeau, 1962) Core sample at 67.82 m depth Core sample at 67.82 m depth; IGR 1216 72985. 13: well-developed neck and broken processes 15: note the spongy processes 17: specimen with 1218 well-branched processes stuck on a biofilm Cuttings from UN-REMSA well, Plate XI. Scale bar = 100 ?m Core sample at 67.21 m depth; IGR 1196 Le Hérissé et al., 2013. Core 1211 sample at 67.82 m depth, pp.72975-1207, 1195.

. Hérissé, 1235 8, 11?13: Tasmanites tzadiensis Le Hérissé Core sample at 1236 50.73 m depth (S34) 8: Core sample at 50.73 m depth (Q42/3) 11: Core sample 1237 at 60.23 m depth (J28/1) 12: Core sample at 62.34 m depth (M39) 13: Core 1238 sample at 66.85 m depth (L47/1) Core sample at 57.58 m depth Core sample at 66.85 m depth, M51); branched structure, pp.72958-1240, 1985.