A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #0-9

Ifrim C., Stinnesbeck W. (2013) Ammonoids from the Maastrichtian (Late Cretaceous) at El Zancudo, Nuevo Laredo, Tamaulipas, Mexico // Bol. Soc. Geol. Mexicana, Vol.65. no.1. P.189-200.

Imlay R.W. (1938) Ammonites of the Taraises formation of northern Mexico // Bull. Geol. Soc. Amer. V.49. no.4. P.539-602.

Imlay R.W. (1940) Neocomian faunas of northern Mexico // Bull. Geol. Soc. Amer. V. 51. P.117-190.

Imlay R.W. (1960) Ammonites of Early Cretaceous Age (Valanginian and Hauterivian) from The Pacific Coast States // United States Government Printing Office, Washington. Pp. 167-223. Plates.

Imlay R.W., Jones D.L. (1970) Ammonites from the Buchia Zones in Northwestern California and Southwestern Oregon. Geological survey professional paper 647-b. 60 p.

Immel H. (1979) Ueber den Ursprung der borealen Crioceratiten und zur Phylogenie der Gattung Crioceratites Leveille (Ammonoidea, Kreide) // In: J.Wiedmann (Ed.), Aspekte der Kreide Europas, International Union of Geological Sciences, series A, No.6, Stuttgart, S.129-140, 3 Abb., 1 Tab., 2 Taf.

Immel H., Guoxiong H. (2002) Cretaceous cephalopods of the Tethyan Himalaya of southern Tibet // Zitteliana. Vol. 23. Pp. 79-105.

Incitti L. (1947) Diagnosi di forme nuove // Rivista Italiana di Paleontologia, v.8, fasc.3. P. 114-115.

Ishibashi T.(1982) Upper Jurassic and Lower Cretaceous ammonites from Sarawak, Borneo, East Malaysia // Geology and Palaeontology of South-East Asia. Vol.23. P.65-75.

Ivanov M., Idakieva V. (2004) Lower Aptian ammonite biostratigraphy and potential for further studies of OAE 1a in Bulgaria // Cretaceous Research 39 (2013) 47-69.

Ivanov M., Nikolov T. (1995) New data on the ammonite occurrence in the Loveč Urgonian Group (Lower Cretaceous) of the Central Fore-Balkan (Bulgaria) // Comptes rendus de l"Académie bulgare des Sciences. Tome 48, 5. Pp. 59-61.

Ivanov M., Stoykova K. (1995) The Cretaceous/Tertiary boundary and the "mass extinction" problem as could be seen in the sections around Bjala (East Bulgaria) // Comptes rendus de l"Académie bulgare des Sciences. Tome 48, 2. Pp. 77-79.

Ivanov M., Stoykova K., Idakieva V. (2010) New biostratigraphic data on the Upper Tithonian and Lower Berriasian in the Krayshte area (Southwestern Bulgaria) // Annuaire de lUniversite de Sofia St. Kliment Ohridski, faculte de geologie et geographie. Livre 1 Geologie. Tome 102. P.21-42. [in Bulgarian]

Ivanov M.I. (1992) New evidence on the Upper Barremian-Lower Aptian ammonite succession in the north of the town of Popovo (North-East Bulgaria) // Comptes rendus de l"Académie bulgare des Sciences. Tome 45, 9. Pp. 69-72.

Ivanov M.I., Stoykova K.H. (1994) Cretaceous/Tertiary boundary in the area of Bjala, Eastern Bulgaria - biostratigraphical results // Geologica Balcanica, 24, 6, Sofia, Decemb. Pp. 3-22.

Ivanova D., Kolodziej B. (2004) New Foraminiferal Data on the Age of Stramberk-Type Limestones, Polish Carpathians // Comptes rendus de l'Académie bulgare des sciences: sciences mathématiques et naturelles. 12/2004; 57(12):69-74.

Ivanova D., Kolodziej B. (2010) Late Jurassic-Early Cretaceous foraminifera from Štramberk-type limestones, Polish Outer Carpathians // Studia Universitatis Babeş-Bolyai, Geologia, 2010, 55 (2), 3 31

Ivanova D., Lakova I., Pavlishina P., Koleva-Rekalova E. (2002) Joint biostratigraphy and lithofacies of Berriasian and Valanginian limestones from subsurface sections in NE Bulgaria // Geologica Balcanica, 32.2-4, Sofia, Decemb. Pp. 63-67.

Ivanova D.K., Kietzmann D.A. (2017) Calcareous dinoflagellate cysts from the Tithonian - Valanginian Vaca Muerta Formation in the Southern Mendoza area of the Neuquén Basin, Argentina // Journal of South American Earth Sciences

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