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Yeni bir geç Kapitaniyen (Orta Permiyen) foraminifer cinsi (Neodiscidae) Elmadağ Olistostromu, Orta Anadolu (Ankara, Türkiye)

A new late Capitanian (Middle Permian) foraminiferal genus (Neodiscidae) from the Elmadağ Olistostrome, Central Anatolia (Ankara, Türkiye)

Melikan Akbaş(KONYA TEKNİK UNİVERSİTESIİ)0000-0001-8144-8939
Sayfa
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Yayın Tarihi
2026-04-13
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

Bu iki cins morfolojik olarak benzerdir, ancak Praeglobidiscus'un son sarılımlarındaki keskin üçgen çıkıntılar tek taraflı iken, bu Globidiscus'ta çift taraflıdır.

📌 3 Maddede Bu Makale

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Amaç & Hipotez:Üst Kretase Elmadağ Olistostromu, çeşitli boyutlarda, tiplerde (platform tipi karbonat, pelajik tip karbonat ve çört) ve farklı periyot/serilere ait (Karbonifer, Permiyen ve Jura-Kretase) çok sayıda blok içeren, İntra-Pontid Okyanusu'nun önülke fliş çökelleriyle karakterizedir.
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Temel Bulgular & Veri:Bu çalışmada, Elmadağ Olistostromu'ndan derlenen bol fosilli bir karbonat bloğu, foraminifer toplulukları açısından incelenmiştir.
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Sonuç & Katkı:Bu iki cins morfolojik olarak benzerdir, ancak Praeglobidiscus'un son sarılımlarındaki keskin üçgen çıkıntılar tek taraflı iken, bu Globidiscus'ta çift taraflıdır.
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Permiyen · Kapitaniyen · Miliolid

Özet

Üst Kretase Elmadağ Olistostromu, çeşitli boyutlarda, tiplerde (platform tipi karbonat, pelajik tip karbonat ve çört) ve farklı periyot/serilere ait (Karbonifer, Permiyen ve Jura-Kretase) çok sayıda blok içeren, İntra-Pontid Okyanusu'nun önülke fliş çökelleriyle karakterizedir. Bu çalışmada, Elmadağ Olistostromu'ndan derlenen bol fosilli bir karbonat bloğu, foraminifer toplulukları açısından incelenmiştir. Çeşitli geç Kapitaniyen foraminifer topluluğunun yanı sıra, Praeglobidiscus adlı yeni bir cins tanımlanmış ve Globidiscus cinsinin olası atası olarak önerilmiştir. Bu iki cins morfolojik olarak benzerdir, ancak Praeglobidiscus'un son sarılımlarındaki keskin üçgen çıkıntılar tek taraflı iken, bu Globidiscus'ta çift taraflıdır.

Abstract

The upper Cretaceous Elmadağ Olistostrome is characterized by foreland flysch deposits of the Intra–Pontide Ocean, which include numerous blocks of various sizes, types (platform-type carbonate, pelagic-type carbonate and chert) and belong to different periods/series (Carboniferous, Permian and Jurassic–Cretaceous). In this study, a fossiliferous carbonate block, collected from the Elmadağ Olistostrome, was studied for its foraminiferal assemblages. Besides a diverse late Capitanian foraminiferal assemblage, a new genus, Praeglobidiscus, is defined and proposed as a possible ancestor of the genus Globidiscus. These two genera are morphologically similar, but the sharp triangular protrusions in the last whorls of Praeglobidiscus is one-sided, whereas it is two-sided in Globidiscus.

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Bu Makaleye Atıf Yap

Akbaş, M. (2026). Yeni bir geç Kapitaniyen (Orta Permiyen) foraminifer cinsi (Neodiscidae) Elmadağ Olistostromu, Orta Anadolu (Ankara, Türkiye). Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi, Cilt: 16. https://doi.org/10.28948/ngumuh.1883619

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Kaynakça (59)

  1. J. R. Groves and D. Altıner, Survival and recovery of calcareous foraminifera pursuant to the end–Permian mass extinction. Comptes Rendus Palevol, 4(6-7), 487-500, 2005. https://doi.org/10.1016/j.crpv.2004.12.007.
  2. D. Vachard, Permian smaller foraminifers; taxonomy, biostratigraphy and biogeography. In: Lucas S.G. and Shen S.Z. (eds), The Permian Timescale. Geological Society of London, Special Publications, 450, 205-252, 2018. https://doi.org/10.1144/SP450.1
  3. K. Krainer, D. Vachard and M. Schaffhauser, Early Permian (Yakhtashian; Artinskian–early Kungurian) foraminifers and microproblematica from the Carnic Alps (Austria/Italy). Abhandlungen der Geologischen Bundesanstalt, 73, 1-247, 2019. https://doi.org/10.268 79/931
  4. D. Vachard and K. Krainer, Calcareous algae and foraminifers across the Permian–Triassic boundary interval (uppermost Bellerophon Formation and basal Werfen Formation) in the Dolomites (South Tyrol – Trentino, Italy). Palaeontographica, Abteilung A: Palaeozoology–Stratigraphy, 324(1–6), 1-173, 2022. https://doi.org/10.1127/pala/2022/0128
  5. C. Okuyucu and M. Akbaş, Systematic revision and phylogenetic assessment of the family Neodiscidae (Foraminifera) and new Capitanian foraminiferal genera from the Ankara region, central Türkiye. European Journal of Taxonomy, 1043, 33-61, 2026. https://doi.org/10.5852/ejt.2026.1043.3207
  6. S. Gargouri and D. Vachard, Sur Hemigordiopsis et d’autres Foraminifères porcelanés du Murghabien du Tebaga (Permien supérieur de Tunisie). Revuede Paléobiologie Volume spécial 2, Benthos’86, 1, 57-68, 1988.
  7. C. Okuyucu, Globidiscus n. gen. (Foraminifera, Neodiscidae): A new Late Guadalupian genus from the Karakaya Complex, Northwest Anatolia (Turkey). Micropaleontology, 67(6), 557-564, 2021. https://doi.org/10.47894/mpal.67.6.02
  8. A. I. Okay, Tectonic units in the Pontides, northern Turkey. In Sengör A.M.C. (ed) Tectonic Evolution of the Tethyan Region. Kluwer Academic Publishers, USA, 109-116, 1989.
  9. M. C. Göncüoglu, K. Dirik and H. Kozlu, Pre–Alpine and alpine terranes in Turkey: Explanatory notes to the terrane map of Turkey. Annales Géologique de Pays Héllenique, 37, 515-536, 1997.
  10. E. Chaput, Ankara Mıntakasının 1/135000 mikyasında jeoloji haritasına dair İzahat. (Notice explicative de la Carte Géologique au 1/135000 de la région d'Ankara). İstanbul Darülfünun Geology Institute Neşr. 7, İstanbul, 1931.
  11. O. Erol, A study of the geology and geomorphology of the region SE of Ankara in Elma Dağı and its surroundings. Institute of Mineral Research and Exploration, Special Publication, D9, 1-99, 1956. (in Turkish with English summary)
  12. B. Akyürek, E. Bilginer, B. Akbaş, N. Hepşen, Ş. Pehlivan, O. Sunu, Y. Soysal, Z. Dağer, E. Çatal, B. Sözeri, H. Yıldırım and Y. Hakyemez, The geology of Ankara–Elmadağ–Kalecik region. Journal of Geological Engineers, 20, 31-46, 1984. (in Turkish with English abstract).
  13. A. Koçyiğit, An example of an accretionary forearc basin from northern central Anatolia and its implications for the history of subduction of Neo–Tethys in Turkey. Geological Society of America Bulletin, 102, 22-36, 1991. https://doi.org/10.1130/001 6-7606(1991)103 2.3.CO;2
  14. U. K. Tekin, B. Sarı, A. Tuncer, K. Sayit, C. Okuyucu and C. Güzgün, Radiolarian and planktonic foraminiferal biochronology of the Soğukçam Limestone Group, Elmadağ Olistostrome, and Unaz Formation (Ankara region, central Türkiye): Insights into the Cretaceous evolution of the Sakarya Continent and overlying units. Carnets De Geologie, 13, 187-264, 2004. https://doi.org/10.2110/carnets.2024.2413
  15. U. K. Tekin, C. Okuyucu, A. Tuncer, M. Akbaş and K. Sayit, Upper Cretaceous foreland flysch deposits from the Intra–Pontide Ocean: geological and palaeontological evidence from the Elmadağ Olistostrome of Ankara, central Türkiye. Lethaia, 58(1), 1-30, 2025. https://doi.org/10.18261/let.58.1.7
  16. A. I. Okay and O. Tüysüz, Tethyan sutures of northern Turkey. In Durand B., Jolivet L. Horváth, F. and Séranne, M. (eds) The Mediterranean Basins: Tertiary extension within the Alpine Orogen. Geological Society of London, Special Publications, 156, 475-515, 1999. https://doi.org/10.1144/GSL.SP.1999.156.01.22
  17. A. I. Okay and M.C. Göncüoğlu, The Karakaya Complex: A review of data and concepts. Turkish Journal of Earth Sciences, 13(2), 77-95, 2004.
  18. C. Schwager, Carbonische Foraminiferen aus China und Japan. In: Richthofen F.von (ed), China. Ergebnisse eigener Reisen und darauf gegründeter Studien, 4(7), 106-159, 1883.
  19. A. D. Miklukho–Maklay, Foraminifera of the Upper Permian deposits of the Northern Caucasus. VSEGEI, Gosgeoltekhizdat, 1, 1-124, 1954. (in Russian)
  20. L. Rui, Upper Permian fusulinids from western Guizhou. Acta Palaeontologica Sinica, 18(3), 271-300, 1979.
  21. D. Altıner and S. Özkan–Altıner, Charliella rossae n. gen., n. sp., from the Tethyan Realm: Remarks on the evolution of Late Permian biseriamminids. The Journal of Foraminiferal Research, 31(4), 309-314, 2001. https://doi.org/10.2113/0310309
  22. M. Reichel, Sur quelques foraminifères nouveaux du Permien méditerranéen. Eclogae Geologicae Helvetiae, 38(2), 524-560, 1946.
  23. E. A. Reitlinger, Development of Foraminifera in the Late Permian and Early Triassic epochs in the the territory of Transcaucasia. Academy of Sciences of the USSR, Questions of Micropaleontology, 9, 45–70, 1965. (in Russian)
  24. D. Altıner, Sengoerina argandi, n. gen., n. sp., and its position in the evolution of Late Permian Biseriamminid foraminifers. Micropaleontology 45(2), 215-220, 1999. https://doi.org/10.2307/1486114
  25. D. Altıner, Trois nouvelles espèces du genre Hemigordius (Foraminifère) du Permien supérieur de Turquie (Taurus oriental). Notes du Laboratoire de Paléontologie de l'Université de Genève, 5, 27-31, 1978.
  26. E. Ja. Leven, Stratigraphy and fusulinids of the Permian strata of Pamir. Trudy Geologicheskogo Instituta Akademiya Nauk SSSR, Moscow, 167, 1-224, 1967. (in Russian)
  27. E. Ja. Leven and M.N. Gorgij, Fusulinids and stratigraphy of the Carboniferous and Permian in Iran. Stratigraphy and Geological Correlation, 19, 687-776, 2011. https://doi.org/10.1134/S0869593811070021
  28. F. Kobayashi, Permian non-fusuline foraminifers of the Akasaka Limestone (Japan). Revue de Paléobiologie, Genève, 31(2), 313-335, 2012.
  29. D. Vachard, M. Hauser, R. Martini, L. Zaninetti, A. Matter and T. Peters, Middle Permian (Midian) foraminiferal assemblages from the Batain Plain (Eastern Oman): Their significance to Neotethyan Paleogeography. Journal of Foraminiferal Research, 32 (2), 155-172, 2002. https://doi.org/10.2113/0320155
  30. J. R. Groves and Y. Wang, Timing and size selectivity of the Guadalupian (Middle Permian) fusulinoidean extinction. Journal of Paleontology, 87(2), 183-196, 2013. https://doi:10.1666/12-076R.1
  31. S. Hada, S. Khosithanont, H. Goto, H. Fontaine and S. Salyapongse, Evolution and extinction of Permian fusulinid fauna in the Khao Tham Yai Limestone in NE Thailand. Journal of Asian Earth Sciences, 175-184, 2015. https://doi.org/10.1016/j.jseaes.2014.03.007
  32. V. E. Ruzhentsev and T. I. G. Sarycheva, The development and change of marine organisms at the Palaeozoic-Mesozoic boundary: Akademiya Nauk SSSR, Trudy Paleontologicheskogo Instituta, 108, 1-431, 1965. (in Russian)
  33. J. X. Fan, Q. Chen, X. D. Hou, A. I. Miller, M. J. Melchin, S. Shen, S. Wu, D. Goldman, C. E. Mitchell and Q. Yang, Geobiodiversity database: A comprehensive section-based integration of stratigraphic and paleontological data. Newsletters on Stratigraphy, 46, 111-136, 2013.
  34. Y. Shi, H. Huang and X. Jin, Depauperate fusulinid faunas of the Tengchong Block in western Yunnan, China, and their paleogeographic and paleoenvironmental indications. Journal of Paleontology, 91(1), 12-24, 2017. https://doi.org/10.10 17/jpa.2016.122
  35. N. Turhan, C. Okuyucu and M.C. Göncüoğlu, Autochthonous Upper Permian (Midian) Carbonates in the Western Sakarya Composite Terrane, Geyve Area, Turkey: Preliminary Data. Turkish Journal of Earth Sciences, 13, 215-229, 2004.
  36. G. P. Nestell and M. K. Nestell, Middle Permian (Late Guadalupian) foraminifers from Dark Canyon, Guadalupe Mountains, New Mexico. Micropaleontology, 52, 1-50, 2006. https://doi.org/10. 2113/gsmicropal.52.1.1
  37. H. J. Song, J. N. Tong, K. X. Zhang, Q. X. Wang and Z. Q. Chen, Foraminiferal survivors from the Permian–Triassic mass extinction in the Meishan section, South China. Palaeoworld, 16, 105-119, 2007. https://doi.org/10.1016/j.palwor.2007.05.016
  38. H. J. Song, J. N. Tong, Z. Q. Chen, H. Yang and Y. B. Wang, End-Permian mass extinction of foraminifers in the Nanpanjiang Basin, South China. Journal of Paleontology, 83, 718-738, 2009. https://doi.org/10.16 66/08-175.1
  39. H. Song, J. Tong and Z. Q. Chen, Evolutionary dynamics of the Permian-Triassic foraminifer size: evidence for Lilliput effect in the end-Permian mass extinction and its aftermath. Palaeogeography, Palaeoclimatology, Palaeoecology, 308, 98-110, 2011. https://doi.org/10.1016/j.palaeo.2010.10.036
  40. D. Altıner and S. Özkan-Altıner, Danielita gailloti n. gen., n. sp., within the evolutionary framework of Middle–Late Permian dagmaritins. Turkish Journal of Earth Sciences, 19, 497-512, 2010. https://doi.org/10. 3906/yer-0905-4
  41. Z. Zhang, Y. Wang and Q. F. Zheng, Middle Permian smaller foraminifers from the Maokou Formation at the Tieqiao section, Guangxi, South China. Palaeoworld, 24, 2015. https://doi.org/10.1016/j.palwor.2014.11.010
  42. D. Vachard, J. Gaillot, D. Vaslet and Y. M. Le Nindre, Foraminifers and algae from the Khuff Formation (late Middle Permian–Early Triassic) of central Saudi Arabia. GeoArabia, 10, 137-186, 2005. https://doi.org/10.2113/geoarabia1004137
  43. J. Gaillot and D. Vachard, The Khuff Formation (Middle East) and time–equivalents in Turkey and South China: biostratigraphy from Capitanian to Changhsingian times (Permian), new foraminiferal taxa and palaeogeographical implications. Coloquios de Paleontologia, 57, 37-223, 2007.
  44. F. Kobayashi, Y. Shiino and Y. Suzuki, Middle Permian (Midian) Foraminifers of the Kamiyasse Formation in the Southern Kitakami Terrane, NE Japan. Paleontological Research, 13(1), 79-99, 2009. https://doi.org/10.2517/1342-8144-13.1.079
  45. C. Kolodka, E. Vennin, D. Vachard, V. Trocme and M.H. Goodarzi, Timing and progression of the end-Guadalupian crisis in the Fars province (Dalan Formation, Kuh-e Gakhum, Iran) constrained by foraminifers and other carbonate microfossils. Facies 58, 2011. https://doi.org/10.1007/s10347-011-0265-1
  46. M. E. Nejad, D. Vachard, A. A. Siabeghodsy and S. Abbasi Middle-Late Permian (Murgabian-Djulfian) foraminifers of the northern Maku area (western Azerbaijan, Iran). Palaeontologia Electronica 18.1.19A, 1-63, 2015. https://doi.org/10.26879/453
  47. A. Atakul-Özdemir, Paleogeographic implications of the Permian shallow marine carbonates in the eastern Lake Van region (eastern Turkey): Foraminiferal biostratigraphic and sequence stratigraphic constraints. Geological Journal, 54:2716-2730, 2019. https://doi. org/ 10.1002/gj.3476
  48. F. Kobayashi, Middle Permian foraminifers of Kaize, southern part of the Saku Basin, Nagano prefecture, central Japan. Paleontological Research, 10(3), 179-194, 2006. https://doi.org/10.2517/prpsj.10.179
  49. F. Kobayashi, Late Middle Permian (Capitanian) Foraminifers from the Uppermost Part of the Taishaku Limestone, Akiyoshi Terrane, Japan. Paleontological Research, 14(4), 260-276, 2010. https://doi.org/10.25 17/1342-8144-14.4.260
  50. C. Okuyucu and U. K. Tekin, New Middle Permian (Capitanian) fusulinid genera from the Karakaya Complex, central Anatolia, Turkey: Taxonomic remarks. Stratigraphy, 19(1), 65-74, 2022. https://doi.org/10.29041/strat.19.1.04
  51. D. Altıner, J. L. Payne, D. J. Lehrmann, S. G. Atasoy and S. Özkan-Altıner, New foraminifera from the Changhsingian (Upper Permian) of the Taurides (southern Turkey) with remarks on their evolutionary origins. Journal of Paleontology, 98(5), 745-772, 2025. https://doi.org/10.1017/jpa.2024.21
  52. D. Vachard and F. Le Coze Paleozoic Foraminifera: Current state of the classification and perspectives. Acta Palaeontologica Romaniae, 20(2), 97-130, 2024. https://doi.org/10.35463/j.apr.2024.02.07
  53. A.d. Orbigny, Tableau methodique de la classe des Cephalopodes. Annales des Sciences Naturelles 7(2), 245–314, 1826.
  54. T. Cavalier–Smith, Protist phylogeny and the high–level classification of Protozoa. European Journal of Protistology, 39(4), 338-348, 2003. https://doi.org/10. 1078/0932–4739–00002
  55. Kh.M. Saidova, On the current state of the system of supraspecific taxa of Cenozoic benthic foraminifera. Publishing House of the P. P. Shirshov Institute of Oceanology, 1-73, 1981. (in Russian)
  56. V. I. Mikhalevich, Systematics and evolution of foraminifera in light of new data on their lithology and ultrastructure. Academy of Sciences of the USSR, Proceedings of the Zoological Institute, 94, 42-61, 1980. (in Russian)
  57. O. Jirovec, Protozoologie. Nakladatelstvi Československe Akademie Vìd, Prague, 1953.
  58. N. N. Subbotina, N. A. Voloshinova and A.Y. Azbel, Introduction to the study of foraminifera (classification of calcareous foraminifera of the Meso–Cenozoic). VNIGRI, Leningrad/St. Petersburg, 1981. (in Russian)
  59. J. X. Lin, Protozoa. in: Yichan Institute of Geology and Mineral Resources, Biostratigraphy of the Yangtze Gorge area chiefly, 3) Late Paleozoic era, Museum Changzhou, Changzhou City, Jiangsu Province, (Geological Publishing House), pp. 110-177 (in Chinese), pp. 323-364 (in English), Beijing, 1984.