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Early cretaceous microfossils associations (foraminifera, ostracoda, calcareous algae, and coral) from the Garagu Formation, Duhok Area, Kurdistan Region, Northern Iraq

  • Imad M. Ghafor
  • Ibrahim M.J. Mohialdeen
Original Paper

Abstract

Microfossils from an outcrop of the Garagu Formation at Gara Mountain, Duhok Governorate, Kurdistan Region, Northern Iraq, indicate a shallow marine with normal to hypersaline conditions, shelf lagoonal environment, and open platform. Twenty samples were collected from unbroken succession of the Garagu Formation. The thickness of the succession is 90 m and it consists mainly of different colored limestone beds with different fauna contents. The lower boundary with a gradational and conformable nature is with Chia Gara Formation (Tithonian-Berriasian) and the upper boundary is gradational with Sarmord Formation (Valanginian-Aptian). The microbiota associations are mostly composed of species of foraminifera, ostracods, calcareous algae, and coral, with dissociated elements and skeletal fragments of gastropods, pelecypods, bryozoans, sponge spicules, crinoid debris, and echinodermata spines. Sixty species are recorded in this study; the combined stratigraphic ranges of the microfossil species identified from the studied section of the Garagu Formation support an age determination of the Late Valanginian-Barremian.

Keywords

Microfossils Garagu formation Early Cretaceous Systematic description Duhok Kurdistan Iraq 

References

  1. Abedpour M, Afghah M, Ahmadi V, Dehghanian M (2016) Biostratigraphic and Lithostratigraphic Study of Fahliyan Formation in Kuh-E-Siah (Arsenjan Area, North-East of Fars Province). Open J Geology 6:1605–1618CrossRefGoogle Scholar
  2. Afghah M, Yaghmour S (2014) Biostratigraphy study of Tarbur Formation (Upper Cretaceous) in Tang-E Kushk and east of Sarvestan (SW of Iran). J Earth Sci 25(2):263–274CrossRefGoogle Scholar
  3. Al-Abawi TS (1984) Lower Cretaceous in Iraq (microfacies, Stratigraphical subdivision and analysis of the Middle Sarmord Formation in Kirkuk area), Erdol and Kohle-Erdgas-Petrochemi vereinigt mitBrennstoff-Chemie,Bd/ 37. Heft5Google Scholar
  4. Aljumaily ISI, Abdulla NMR (2013) Inferred Inversely Reactivated Listric Faults at Chia Gara Anticline-Northern Iraq, International Van Earthquake Symposium 23–27 October 2013, Van, Turkey, 1–12Google Scholar
  5. Al-Khashab SS, Khalaf K, Al-Basher JM (2011) Paleoecology of Garagu Formation and the upper part of Ratawi Formation (Lower Cretaceous) of Central Iraq. Iraqi National Geoscience 11(1):1–14Google Scholar
  6. Alloiteau (1952) Embranchment des Coelenteres II, Madreporaires-paleozoiques. In: Piveteau J (ed) Traite de paleontologie 1. Masson, Paris, pp 539–686Google Scholar
  7. Altha A (1878) O galicyjskich gatunkach skamienialych otwornic rodzaju Gyroporella Gumb. Akad Umiejet Krakow Wydz Mat Przyr Rozpr 5:71–112 pls. 6-7Google Scholar
  8. Amin DHM (1989) Biostratigraphy of Garagu Formation in Northern Iraq. M.Sc thesis, University of Baghdad, 65 pages, 14 platesGoogle Scholar
  9. Arnaud-Vanneau A (1980) Micropale´ontologie, pale´oe´cologie et se´dimentologie d’u ne plate-forme carbonate´e de la marge passivede la Te´thys: l’Urgonien du Vercors septentrional et de la Chartreuse (Alpes occidentales). Geologie Alpine, Memoir 10:874Google Scholar
  10. Arnaud-Vanneau & Thieuloy (1972) Accessed at: http://www.marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=1045246 on 7 July 2017
  11. Babinot J-F, Colin JP (2011) Barremian ostracods from the Serre de Bleyton (Drôme, SE France), Ann. Naturhist. Mus. Wien. Serie A 113:735–775Google Scholar
  12. Babinot JF, Damotte R, Donze P, Grosdidier E, Oertli HJ. Scarenzi-Carboni G (1985) Crétacé inférieur. In: Oertli, H.J. (ed.), Atlas des ostracodes de France. – Bulletin des Centres de Recherche Exploration-Production Elf-Aquitaine. Mémoire 9:163–209Google Scholar
  13. Babinot JF, Moullade M, tron Chetti G (2007) The upper Bedoulian and lower Gargasian ostracoda of the Aptian stratotype: taxonomy and biostratigraphic correlation. Carnets de Géologie 5:1–35Google Scholar
  14. Balaky SM, Abdula RA, Perot EM (2016) Facies analysis and depositional environment of Garagu Formation (Berriasian-Valanginian) in Gara Mountain, Gali Garagu, Sarsang District, Iraqi Kurdistan region, Journal of Zankoy Sulaimani, Special volume, 51–67, GeoKurdistan IIGoogle Scholar
  15. Barattolo F. 1978, Su di una nuova dasicladacea (Alghe verdi) nel Paleocene dell'Appennino meridionale. Boll. Soc. Nat. Napoli, LXXXV II, p. 1-76, 19 pls., NapoliGoogle Scholar
  16. Baron- Szabo RC, Hamedani A, Senowbari B (2003) Scleractinian corals from Lower Cretaceous deposits, north of Esfahan(central Iran). Facies 48:199–216 pl.36–39. 2figs. 3Tabs, 215CrossRefGoogle Scholar
  17. Basson P, Edgel HS (1971) Calcareous algae from the Jurassic and Cretaceous of Lebanon. Micropaleontology 17:411–433CrossRefGoogle Scholar
  18. Bellen, R. C., Van Dunnington, H.V., Wetzel R., and Morton, D. (1959) Lexique stratigraphique, International Asie, Iraq, 3c. (10a): 333 pGoogle Scholar
  19. Berger, Kaever (1952) Dasycldales An illustrated monograph of a fascinating algal order. Georg Thieme Verlag, Stuttgart, New York, 247 pGoogle Scholar
  20. Bourne GC (1900) The Anthozoa. In: Lankester R (ed) Treatise on Zoology, Part 2, Porifera and Coelenterata. A. and C. Black, London, pp 59–79Google Scholar
  21. Blumenbach JF (1805) Abbildungen naturhistorischer Gegenstande. Gottingen, (8), 80Google Scholar
  22. Brady GS (1867) A Synopsis of the Recent British Ostracoda. Intellectual Observer 12(2):110–130 2 platesGoogle Scholar
  23. Bucur II (2011) Early Barremian dasycladalean algae from Serre de Bleyton (Drôme, SE France). Ann Naturhist Mus Wien, Serie A 113(6):19–653Google Scholar
  24. Bucur II, Polavder S, Radoičić R (2014) Lower Cretaceous calcareous algae and foraminifera from Trbusnica (Vardar zone, Serbia). Acta Paleontologica Romaniae 10(1–2):95–104Google Scholar
  25. Buday T (1980) Regional geology of Iraq Vol. 1. In: Kassab, I. I. M. and Jassim S.Z., (Eds.), D. J. Geology Survy, Mul. Invast. Public., 445pGoogle Scholar
  26. Chatton M, Hart E (1960) Evaluation of the Tithonian to Albian stratigraphy of Iraq, I. P. C. Report. I.N.O.C. Library, No.1/141, 62 (2379), BaghdadGoogle Scholar
  27. Cherchi A, Schroeder R (1999). Late Barremian orbitolinid foraminifera from northern Somalia. Bollettino della Societá Paleontologica Italiana, 1 (38): 3–13Google Scholar
  28. Clavel B, Charollais J, Conrad MA, Jan du Chêne R, Busnardo R, Gardin S, Erba E, Schroeder R, Cherchi A, Decrouez D, Granier B, Sauvagnat J, Weidmann M (2007) Dating and progradation of the Urgonian limestone from the Swiss Jura to South East France. Zeitschrift der Deutschen Gesellschaft für Geowissenschaften (ZdGG) 158(4):1025–1063CrossRefGoogle Scholar
  29. Clavel B, Conrad M, Busnardo R, Charollais J, Granier B (2013) Mapping the rise and demise of Urgonian platforms (Late Hauterivian - Early Aptian) in southeastern France and the Swiss Jura. In: Skelton, P., Granier, B. & Moullade, M. (eds.), special issue: spatial patterns of change in Aptian carbonate platforms and related events. Cretac Res, 39: 29–46Google Scholar
  30. Conrad MA (1970) Barremian and Lower Aptian Dasycladaceae in the area surrounding Geneva (Switzerland). Geol Romana IX:63–100 11 pls., RomaGoogle Scholar
  31. Corliss BH (1985) Microhabitats of benthic foraminifera within deep-sea sediments. Nature 314:435–438CrossRefGoogle Scholar
  32. Cuif JP, Dauphin Y (2004) The environment recording unit in coral skeletons: structural and chemical evidences of a biochemically driven stepping-growth process in coral fibres. Biogeosciences Discussions 1:625–658CrossRefGoogle Scholar
  33. Damotte R, Grosdider E (1963) Quelques Ostracodes du Crétacé de la Champagne humide. I. Albien. Cénomanien Revue de Micropaléontologie, Paris 6(1):51–66Google Scholar
  34. de Fromentel E (1857) Description des polypiers fossiles de l'étage Néocomien. Bulletin de la société des sciences historiques et naturelles de l'Yonne :1–78Google Scholar
  35. Dieni I, Massari F, Moullade M (1963) Sur quelques Orbitolinidae des calcaires a facies “Urgonien” du Cretaace inferieur des environs d’Orosei (Sardaigne). Boll Soc Geol Ital 12(2):13–18Google Scholar
  36. Dietrich WO (1926) Steinkorallen des Malms und der Unterkreide im südlichen Deutsch-Ostafrika. Palaeontographica 1(suppl.7):43–62Google Scholar
  37. Ditmar V (1971) Iraqi–Soviet Team, Geological conditions and hydrocarbon prospects of the Republic of Iraq (Northern and Central parts). EOC Library, BaghdadGoogle Scholar
  38. d’Orbigny A (1851) Cours élémentaire de Paléontologie, Polypiers ou Zoophytes. Masson, Paris, pp 151–189Google Scholar
  39. Dragastan O (1999) Early Cretaceous algae of Aliman (South Dobrogea): a revision and description of two new species from East Carpathians. Acta Paleontologica Romaniae 2:125–137Google Scholar
  40. Dragastan O, Marinescu M, Gheorghe D, Ţinteanu C (1989) Upper Bauxite sensu D. Patrulius and some new algae of Pădurea Craiului Mts. (Northern Apuseni). Revue Roumanine de Géologie, Géophysique et Géographie, Géologie, 33, 55–67, BucureştiGoogle Scholar
  41. Dragi_cevic´ I, Velic I (2002) The northeastern margin of the Adriatic Carbonate Platform. Geologia Croatica 55:185–232Google Scholar
  42. Eguchi M (1951) Mesozoic hexacorals from Japan. Science Reports of the Tohoku Imperial University, (2, Geology) 24:1–96Google Scholar
  43. Elewa AMT (2004) Quantitative analysis and palaeoecology of Eocene Ostracoda and benthic foraminifera from Gebel Mokattam, Cairo, Egypt. Palaeogeogr Palaeoclimatol Palaeoecol 211:309–323CrossRefGoogle Scholar
  44. Elliott GF (1960) Fossil calcareous algal floras of the Middle East with a note on a Cretaceous cum Hensonella cylindrica gen. et sp. Nov Q Jl geol Soc Lond 115:217–232CrossRefGoogle Scholar
  45. Elliott GG (1968) Permian to Paleocene calcareous algae (Dasycladaceae)of the Middle East, Bull.Br. Mus.Nat. Hist.(Geo.) supp1. 4. LondonGoogle Scholar
  46. Elliott GF (1970) New and little-known Permian and Cretaceous codiaceae (calcareous algae) from the middle east. Paleontology 13(2):327–333Google Scholar
  47. Genot P (1987) Les Chlorophycees calcaires du paleogene dEurope nord-occidentale, Bassin de Paris, Bretange, Cotentin, basin, de mons). These de doctorat d Etat Universite de Nantes, 500 pGoogle Scholar
  48. Ghafor IM, Mohialdeen IMJ (2016) Fossils distribution from Garagu Formation (Early Cretaceous), diversity and paleoennvironmental conditions, Kurdistan Region, North Iraq. J Zankoy Sulaimani, JZS GeoKurdistan II(Special Issue):139–150CrossRefGoogle Scholar
  49. Granier B (2012) The contribution of calcareous green algae to the production of limestones: a review. In: Basso, D. & Granier, B. (eds.), calcareous algae and the global change: from identification to quantification. Geodiversitas, 34(1):35–60Google Scholar
  50. Granier B (1987) Révision de Likanella campanensis Azéma and Jaffrezo, 1972, Algue Dasycladacée du Crétacé inférieur du Sud-Est de l'Espagne. Rev Paléobiol 6(2):207–212Google Scholar
  51. Granier B, Clavel B, Charollais J, Weidmann M (2014) Latest Jurassic- Early Cretaceous Dasycladalean algae (Chlorophyta) from the Morand Drilling at Montricher (Canton of Vaud, Switzerland). Acta Paleontologica Romaniane 10(1–2):25–38Google Scholar
  52. Granier B, Clave B, Moullade M, Busnardo R, Charollais J, Tronchetti G, Desjacques P (2013) L'Estellon (Baronnies, France), a Rosetta Stone for the Urgonian biostratigraphy. Carnets de Géologie [Notebooks on Geology] – Article, 163, 207Google Scholar
  53. Grgasovic´ T, Sokac, B. (2003) Dasycladales in the stratigraphy of the Croatian Dinarides Mts. In: Braga, J.C and Aguirre, J. (Eds.), Abstracts, Eighth International Symposium on Fossil Algae Universidad de Granada: 27–28Google Scholar
  54. Gumbel CW (1882) Geognostische Beschreibung der Fra ¨nkischen Alb (Frankenjura) mit dem anstoßenden fra ¨nkischen Keupergebiete. T. Fischer, Kassel, 763 pGoogle Scholar
  55. Hallock P (1982) Evolution and extinction in larger Foraminifera.––Proc. of the Third North American Paleontological Convention, 1:221–225Google Scholar
  56. Hanna MT (2007) Palynology of the upper part of Baluti Formation and the nature of its contact with the Sarki Formation at Amadya district, NE Iraq, PhD Thesis, Unpublished, University of Mosul, 143pGoogle Scholar
  57. Hart, E. (1960) Correlation diagram and fossil range chart from Awasil-5 to Rania.I. P. C. Geological department, Kirkuk, I.P. R.4/141/−62/3851 (unpublished)Google Scholar
  58. Hart E (1962) Geological notes on the Tithonian Albian of North Iraq, I. P. C., I. P. R. 4/141–62/3851(unpublished)Google Scholar
  59. Husinec A (2001) Palorbitolina lenticularis from the northern Adriatic region: palaeogeographical and evolutionary implications. J Foraminifer Res 31:287–293CrossRefGoogle Scholar
  60. Husinec A, Sokač B (2006) Early Cretaceous benthic associations (foraminifera and calcareous algae) of a shallow tropical-water platform environment (Mljet Island, southern Croatia). Cretac Res 27:418–441CrossRefGoogle Scholar
  61. Jäger M (2010) Crinoids from the Barremian (Lower Cretaceous) of the Serre de Bleyton (Drôme, SE France). Ann. Naturhist. Mus. Wien, Serie A 112:733–774Google Scholar
  62. Jassim SZ, Buday T (2006) Units of the Unstable Shelf and the Zagros Suture, chapter 6, in Jassim, S.Z., and J.C. Goff, eds., Geology of Iraq, first edition: Brno, Czech Republic, Prague and Moravian Museum, pp. 71–83Google Scholar
  63. Johnson JH (1946) Lime screteing algae from the pennsylvanian and Permian of Kansas. Bull Geol Soc Amer 57:1087–1120CrossRefGoogle Scholar
  64. Jones TR (1849) A monograph of the Entomostraca of the Cretaceous Formation of England. Monograph Palaeontographical Soc London 3Google Scholar
  65. Jones TR (1878) Ostracoda from the Subwealden of Sussex. Geol. Mag. New. Ser 2(5):100–110CrossRefGoogle Scholar
  66. Jorissen FJ, Destigter HC, Widmark JGV (1995) A conceptual model explaining benthic foraminiferal microhabitats. Mar Micropaleont 26:3–15CrossRefGoogle Scholar
  67. Kützing FT (1843) Phycologia generalis oder Anatomie, Physiologie und Systemkunde der Tange. F.A. Brockhaus, Leipzig, pp 311–313Google Scholar
  68. Kroh A, Lukeneder A, Moosleitner G (2010) The invertebrate fauna from the Barremian of Serre de Bleyton (Drôme, SE France). Ann. Naturhist. Mus. Wien, Serie A 112:569–574Google Scholar
  69. Laug B, Peybernès B, Rey J (1980) Mayncina bulgarica n. sp., Lituolidae nouveau du Crétacé inférieur mésogeen (Bulgarie, Portugal, Pyrénées, Tunisie). Bull Soc D´Hist Nat Toulouse 116(1-2):68–76Google Scholar
  70. Leupold W, Bigler H (1935) Coscinoconus, eine neue Foraminiferenform aus Tithon-Unterkreide-Gesteinen der helvetischen Zone der Alpen. Eclogae Geol Helv 28(2):606–624Google Scholar
  71. Longoria JF (1974) Stratigraphic, morphologic and taxonomic studies of Aptian planktonic foraminifera. Rev Esp Micropaleontol,Numero,Extraord:1–107Google Scholar
  72. Löser H, García-Barrera P, Mendoza-Rosales CC, Ortega-Hernández J (2013) Corals from the Early Cretaceous (Barremian-Early Albian) of Puebla (Mexico)—introduction and family Stylinidae. Revista Mexicana de Ciencias Geológicas 30(2):385–403Google Scholar
  73. Łuczkowska E (1972) Miliolidae (Foraminiferida) from Miocene of Poland. Part I Revision Classification Acta Paleont Pol 17(3):341–377Google Scholar
  74. Łuczkowska E (1974) Miliolidae (Foraminiferida) from the Miocene of Poland. Part II. Biostratigraphy, palaeoecology and systematics. Acta Paleont Pol 19:1–176Google Scholar
  75. Martin K (1880) Teritiarschichten auf Java. Ledien. E. J. Brill, Lief. 3, paleont. Thiel(1879-1880), Netherland, p 150–164Google Scholar
  76. Mazzini I, Anadon P, Barbieri M, Castorina F, Ferreli L, Gliozzi E, Mola M, Vittori E (1999) Late Quaternary sea-level changes along theTyrrenian coast near Orbetello (Tuscany, Central Italy): palaeoenvironmental reconstruction using ostracoda. Mar Micropaleontol 37(3–4):289–311CrossRefGoogle Scholar
  77. Maync W (1958) Note sur Pseudocyclamina jaccardi(Schrodt) et sa synonmie; Revue Micropaleontol 1:9–16Google Scholar
  78. McMillan IK (1990) Foraminiferal biostratigraphy of the Barremian to Miocene rocks of the Kudu 9A-1, 9A-2 and 9A-3 boreholes. Communs Geol Surv Namibia 6:25–32Google Scholar
  79. Mertens E (1956) Zur Greenzziehung Alb/Cenoman in Nordwestdeutschland mit hilfe von Ostracodn; Geol. Jahrlb 72:173–230Google Scholar
  80. Michelin H (1840-1847) Iconographie zoophytologique. Description par localités et Terrains des Polypiers fossiles de France et pays environnants. P. Bertrand, Paris, 348ppGoogle Scholar
  81. Mirza TA, Mohialdeen IMJ, Awadh SM (2016) Iron mineralization in the Garagu Formation of Gara Mountain, Duhok Governorate, Kurdistan, N. Iraq: geochemistry, mineralogy and origin. Arabian J Geoscieines 9.  https://doi.org/10.1007/s12517-016-2450-6
  82. Moosleitner G (2007) Winzig, aber sensationell! Meine kleinste Fossilfundstelle–Fossilien 24(5):288–298Google Scholar
  83. Morellet L, Morellet J (1922) Nouvelle contribution à l'étude des Dasycladacées tertiaires.-Mémoires de la Société géologique de France, Paris, (Paléontologie), t. XXV, fasc. 2, N° 58, 33 pGoogle Scholar
  84. Moryocowa E (1964) Hexacorallia des Couches de Grodzisze (Neocomien, Carpathes). Acta Paleont Polon 9:3–114 WarszawaGoogle Scholar
  85. Moullade M (1966) Etude stratigraphique et micropaléontologiquedu Crétacé inférieur de la fosse vocontienne. These Doc. Lab.Géol. Fac. Sci. Lyon 15:1–369Google Scholar
  86. Müller GW (1894) Die Ostracoden des Golfes von Neapel und der angrenzenden Meeresabschnitte. In: Z. S. zu Neapel (Ed), Fauna und Flora Golf von Neapel und der angrenzenden Meeres-Abschnitte. Berlin 1894:1–404Google Scholar
  87. Murray JW (1991) Ecology and palaeoecology of benthic foraminifera Longman scientific and technical, Avon, 397pGoogle Scholar
  88. Neale JW (1960) Marine Lower Cretaceous Ostracoda from Yorkshire, England. Micropaleontology 6(2):203–224CrossRefGoogle Scholar
  89. Neumann M (1965) Contribution a l’étude de quelques Lituolidés du Cénomanien de l’ile Madame (Charente - Maritime). Rev Micropaleontol 8(2):90–95Google Scholar
  90. Omaña L, Alencáster G (2009) Lower Aptian shallow-water benthic foraminiferal assemblage from the Chilacachapa range in the Guerrero-Morelos Platform, south Mexico: Revista Mexicana de Ciencias Geológicas, 26 (3): 575–586Google Scholar
  91. Pascher A. 1931. Systematche Ubersicht uber die met Flagellaten in Zusammenhung stehenden Algenereihen und Versuch einer Einreihung dieser Algenestamme in die Stamme des pflanzenreiches. Beihefte Zum Botanischen Centralblatt, Jena, Band, XLVIII, Heft 3, P. 17-332Google Scholar
  92. Pfender J (1938) Les Foraminiferes due Valanginien provencal. Bull Soc Geol Fr Sir 5(8):231–242Google Scholar
  93. Pflaumann U, Krasheninnikov VA (1977) Early Cretaceous planktonic foraminifers from eastern North atlantic ,dsdp leg 41Google Scholar
  94. Prever PL (1999) Anthozoa. In: Parona CF (ed) La Fauna coralligena del cretaceo dei Monti d Ocre nell Abruzzo Aquilano Mem. descr Ct. geol. Ital. 5, 1: 51–147Google Scholar
  95. Radoičić R (1959) Salpingoporella dinarica nov. sp. dans less sediments cretaces inferieurs dis Dinarides. Geologice Glanisic 3:33–42Google Scholar
  96. Roemer FA (1841) Die Versteinerungen des norddeutschen Kreidegebirges (Hannover) Hahnsche Hofbuchhandlung, 1–136Google Scholar
  97. Rossi, Malz H (2005) Etude taxonomique de quelques ostracodes du Crétacé inférieur du Haut-Atlas occidental, Maroc. Senckenb Lethaea 85(1):81–93CrossRefGoogle Scholar
  98. Sars GO (1866) Oversigt af Norges marine Ostracoder. Forhandlingeri Videnskabs-Selskabeti Christiania 1865(1):1–130Google Scholar
  99. Sauvagnat J (1999) Les ostracodes aptiens et albiens du Jura. – Publications du Département de Géologie et Paléontologie, Université de Genève, 24: 223 pGoogle Scholar
  100. Sauvagnat J, Clave B, Charollas J, Schroeder R (2001) Ostracodes barrémo-aptiens de quelques vires marneuses de l’Urgonien jurassien, pré-subalpin et subalpin (SE de la France). Inventaire Préliminaire et Systématique – Archives des Sci Genève 54(2):83–98Google Scholar
  101. Scarenzi-Carboni G (1984) Les ostracodes du bassin vocontien, paléoécologie et biostratigraphie au cours du Barrémien et du Bédoulien. –Thesis University Claude Bernard, Lyon: 136 p. [unpublished]Google Scholar
  102. Schlumberger C (1904) Note sur le genre Choffatella n.gen. Bull Soc geol France (4) 4:763Google Scholar
  103. Schudack U, Schudack M (2009) Ostracod biostratigraphy in the Lower Cretaceous of the Iberian chain (eastern Spain). J Iber Geol 35(2):141–168Google Scholar
  104. Simmons mD, Emery D, Pickard NaH (1991) Hensonella dinarica and originally calcitic early cretaceous Dasycladacean Algae. Paleontology 34(4):955–961Google Scholar
  105. Simmons MD, Whittaker J, Jones RW (2000) Orbitolinids from Cretaceous sediments of the Middle East—a revision of the F.R.S. Henson and Associates cCollection, pProceedings of the Fifth International Workshop on Agglutinated foraminifera. Grzybowski Foundation Special Publication 7:411–443Google Scholar
  106. Sissakian V (2000) Geological Map of Iraq Sheets No. 1, Scale 1:1000000, State establishment of Geological Survey and Mining. GEOSURV, Baghdad, IraqGoogle Scholar
  107. Sissakian V (2005) The stratigraphy of the exposed Cretaceous rocks in Iraq, as deduced from the results of the regional and detailed geological surveys (GEOSURV 1971-1996). Iraqi Bulletin Geology Mining 1(1):1–20Google Scholar
  108. Sylvester-Bradley PC (1948) Bathonian ostracods from the Boueti bed of Langton Herring, Dorset. Geol Mag 85(4):185–204CrossRefGoogle Scholar
  109. Triebel E (1952) Ostracoden deer Gattung Cytheretta aus dem Tertiar des Mainzer BecKens: Hessischen Landesamts fur bodenforschung. Notezblatt. (Wiesbaden), ser. 6 v. 3. p 50–30Google Scholar
  110. Wilson JJ (1977) Carbonate facies in geological history. Sprimger- Verlag, New York 471pGoogle Scholar
  111. Yavarmanesh H, Vaziri SH, Aryaei AA, Jahanil D, Pourkermani M, Bouriabadi EK (2017) Benthic foraminiferal and calcareous algae assemblages in the Tirgan Formation (Urgonien facies type) in South Flank of Ghorogh Syncline (North of Chenaran), NE Iran. Open J Geology 7:796–805CrossRefGoogle Scholar
  112. Yokoyama M (1980) Foraminifera aus dem Kalksteine von Torinosu und Kompita. In: Neumann, E. & Neumayr, M. (eds.) Geologie und Paläontologie von Japan. Denkschriften der Kaiserlichen Akademie der Wissenschaften, Mathematish-Naturwissenschaftiche Klasse, 57: 26–27Google Scholar

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© Saudi Society for Geosciences 2018

Authors and Affiliations

  1. 1.Department of Geology, College of ScienceUniversity of SulaimaniSulaimaniIraq

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