Cemal Tunoğlu

• Professor (Full) at Hacettepe University

Previous studies concluded that the Bosphorus Strait was formed during the Quaternary by fluvial incision of a valley between the Black Sea, to the north, and the Marmara Sea in the south. Hitherto, however, few details of the evolution of this connection have been elucidated from the sediments deposited within the Bosphorus itself. We report here...

The study area is located about 40km west of Aydin city in western Turkey and includesNeogene to Quaternary sediments of the Fevzipasa Formation, which unconformably overlies the Miocene rock units. The Fevzipasa Formation is composed of conglomerates, sandstones, mudstones, marls, limestones and tuff layers and is unconformably overlain by recent...

The Sea of Marmara, an inland sea, is situated in northwest part of Turkey and connected to the Aegean Sea and Black Sea through the Bosphorus and Dardanelles. The vertical and horizontal distribution of the benthonic ostracod associations from the Sea of Marmara were examined using 149 samples between 0-100 meters. All of the samples include rich...

In this study, Pannonian-Pontian Ostracoda fauna is researched from the material obtained from Gelibolu Neogene Basin. Ostracoda fauna are mainly derived from the white marl, mudstone and siltstone. Fourteen species and eight taxa belonging to open nomenclature mainly have brackish and freshwater origin are investigated in the study. Two new specie...

The sediment of Lake Çubuk in NW Anatolia, which is situated very close to the climate boundary between the dry Central Anatolia and the wet Marmara region, is regarded as a suitable climate archive to test inward and outward movements of this boundary in accordance with past climate variations. Herein, we study the stratigraphic record of the last...

Nonmarine ostracods are widely distributed in a variety of aquatic habitats, from mountain lakes to underground waters, where each species tends to show species-specific habitat preferences with unique functional traits to increase their survival chances. To understand the patterns of such a relationship between habitat preferences and functional t...

2023-08-16-01 (01-6) kod no.lu proje kapsamında çalışma alanı olarak seçilen lokaliteler (Korçullu-Kızılırmak-Çankırı, Kemallı-Kızılırmak-Çankırı) Çankırı-Çorum Havzası’nda Kızılırmak Formasyonu içerisinde yer almakta olup Dünya’da ve Türkiye’de nadir bilinen Oligosen yaşlı omurgalı ve memeli paleofaunalarını içeren fosil yataklarını barındırmaktad...

The Kızılırmak Delta was declared as a Ramsar Site because of its location on the birds' migration routes and high exposure to anthropogenic pressures on the delta. There are recent comprehensive studies conducted to determine the trophic levels of the lakes in the delta, together with faunal studies to assess its biodiversity. However, there are l...

Here, a charophyte assemblage from lower Pleistocene deposits at the coal mine locality of Dursunlu (Ilgın Basin, Turkey) is described and illustrated for the first time. The assemblage is composed of 11 species recovered from 50 samples taken from an 18 m-thick sedimentary sequence. The base of the sequence is dominated by lignites and organic-ric...

2006-2013 yılları arasında gerçekleştirilmiş olan bu projede Çankırı-Çorum Tersiyer Havzasında Kırıkkale-Sungurlu-Kızılırmak üçgeni içinde yüzlek veren denizel ve karasal Paleojen çökellerin jeolojik özellikleri incelenmiş ve bu çökellerden omurgalı ve omurgasız fosillere ilişkin paleontolojik veriler elde edilmiştir. Çalışma alanı olarak bu bölgen...

2006-2016 yılları arasında yürütülen “ÇankırıÇorum Havzasındaki En Büyük Kara Memelisi Olan Baluchitherium’un ve Eşlik Eden Diğer Omurgalıların Bulgu Yerlerinin Araştırılması ve Bölgenin Paleocoğrafyası (Ankara, Kırıkkale, Çankırı, Çorum, Kırşehir)”, “Türkiye’deki Oligosen Yaşlı Omurgalı Fosil Yataklarının Araştırılması (Edirne, Kırklareli, Tekirda...

The Şarkikaraağaç coalfield is located in the north-western part of the Lake Beyşehir Basin, which is the most significant graben area in the eastern flank of Isparta Angle, and hosts a 300-Mt coal resource. This study focuses on the first palaeoenvironmental and palaeoclimatic reconstruction of Pliocene and early Pleistocene coal-bearing sequences...

In this study, we describe and illustrate a new charophyte assemblage from the Miocene-Pliocene of the Ilgın and Yalvaç basins (Central Anatolia, Turkey). Six stratigraphic sections and one borehole have been studied from the sedimentological and micropaleontological viewpoints. The studied localities at Ilgın are: Early Miocene of Yukarıçiğil, Kir...

Lake Liman is a lagoon located very close to the Black Sea coast at the northernmost part of the Kızılırmak Delta (Bafra Plain, Samsun) where Kızılırmak River disembogues to Black Sea. The lake is separated from the Black Sea by a very narrow dune barrier. With the drainage channel located to the south of the lake, excess water from the agricultura...

A charophyte assemblage composed of nine species is described and illustrated, for the first time, in lower Pleistocene deposits at Dursunlu (district of Konya, Ilgın basin) in central Anatolia (Turkey). This flora has been recovered from 50 samples distributed along a 15 m thick stratigraphic section. The base of the section is constituted by orga...

Despite global and local evidence of significant precipitation changes since the Little Ice Age (LIA), their impact upon lake hydrology and surrounding vegetation has yet to be investigated in NW Anatolia. Moreover, the LIA, as a trigger to the social/political recession of the Ottoman Empire in the 17th century is expected to have these impacts. T...

In this study, the high-resolution palynological data derived from two cores taken from Mogan Lake in the Gölbaşı Basin of the Ankara region in central Anatolia (Turkey) are presented. The results provide the palaeobotanical, palaeoclimatological and palaeoenvironmental records of the last ca. 3100 years for the region which is characterised by ric...

Since its first description from Madagaskar, there are about 16 living (Recent) species of the genus Zonocypris reported from Afrotropical, Neotropical and Palearctic regions. Similarly, there are about 16 fossils with two (sub)species of the genus known from the Early Cretaceous (e.g., India, France, Russia, China, Brazil) to Holocene (e.g., Alban...

Lake Karaboğaz, located in the western part of the Kızılırmak Delta (Bafra Plain, Samsun), is a lagoon connected with the Black Sea. The lake extends along the NE-SW direction, roughly parallel to the Black Sea shore. The shape of lake is narrow and long and its surface area is approximately 1 km 2. The lake is fed by canals and has many small bays...

The study area is located 45 km southwest of Ankara (Central Anatolia, Turkey) where the Alagöz Formation crops out around Alagöz district. The Alagöz Formation consists mainly of coarse to fine clastics such as conglomerates, sandstones, and mudstones with thin fossiliferous limestone intercalations indicating fluvial to lacustrine conditions. A 2...

The ancient Gulf of Latmos is an iconic example of a dynamic landscape and humankind's historical relationship with it. Using extensive new primary data and original models for calibrating radiocarbon dates in transitional lagoon environments, we demonstrate that Lake Bafa (or Bafa Gölü, in Turkish) formed at a much earlier date than previously tho...

Acıgöl (Nevşehir, Central Anatolia) is a drained crater lake. Acıgöl maar was formed by the violent vapor explosions due to the interaction of hot rhyolitic magma with the (sub-)surface water during the latest Pleistocene. A 844 cm-deep borehole was drilled at the maar and 713 cm-thick Acıgöl Core Succession (ACS) was retrieved. The ACS is mainly c...

Çankırı-Çorum Havzası, Orta Eosen, Gastropoda, Bivalvia.

The Charophytes, from the class of Algae, are mainly known in the fossil record with their reproductive organs. Charophytes are known since the Silurian and they are the oldest ancestors of land plants. They live in lakes and lagoons and allow to investigate biostratigraphy and depositional environment of related deposits. The number of studies on...

Charophytes (Charophytes), which are members of the Charophyceae family, are microscopic reproductive organs of benthic algae with macroscopic filamentous structure that live in aquatic ecosystems such as the fresh-brackish water, river, lagoon, alluvial fan, salty water environments. The asexual reproductive organs (oogonia or oosporangia containi...

This presentation is a preliminary account of the Cenozoic charophyte fossil record from Turkey. The collision of the Africa-Arabian plate with Eurasia and the rise of Anatolian Peninsula, with the withdrawal of the Black Sea from the Mediterranean, resulted in the origin of numerous Cenozoic basins in Turkey. These basins were infilled with Eocene...

The Dombayova Graben is located 75 km southwest of the Afyonkarahisar, western Anatolia. Just as adjacent basins developed around the Isparta Angle, this N-S trending graben also displays a significant Neogene Quaternary succession bearing economic coal deposits. By the investigation of 18 samples compiled from coal-bearing upper part of the basin...

During Neogene major tectonic movements around the eastern Mediterranean Sea caused the uplift of Anatolian Peninsula that resulted in the formation of several sedimentary basins. The Yalvaç Basin is one of these formed during this period of time and located on the eastern flank of the Isparta Angle. The pre-Neogene basement and marginal rocks comp...

MTA Genel Müdürlüğü Tabiat Tarihi Müze Müdürlüğü’nün 2016 yılında gerçekleştirdiği “Türkiye’nin Paleojen stratigrafisi ve paleocoğrafyası” isimli projesi kapsamında ağırlıklı olarak 1/100.000 ölçekli G32, H32 paftaları içerisinde, Çankırı-Çorum Havzası’nda Kırıkkale, Kırşehir, Çankırı ve Çorum illeri çevresinde prospeksiyon, stratigrafi, sedimantol...

Paleoclimatic and paleoenvironmental interpretations are reconstructed from coal bearing sedimantary sequences of Pliocene in Dombayova Graben based on evidence obtained from palynofloras and ostracod faunas. In this study coal samples from two different localities, i.e. Akçaköy section, and D-97 drilling are examined. Early Pliocene (MN 14) aged...

Paraceratherium is an extinct genus of gigantic hornless rhinoceroses grouped in the family Hyracodontidae. The representatives of this family dispersed in large areas from eastern Asia to the Balkans during Eocene and Oligocene times. The genus Paraceratherium includes the largest species of this family; adult males are estimated to have been tall...

Calisma alani, Aydin iline bagli Soke ilcesinin yaklasik 40 km batisinda yer almaktadir. Soke Havzasi, Neojen ve Kuvaterner yasli istiflere sahiptir. Temel kayalari uzerine uyumsuz olarak gelen Soke Formasyonu, tabanda, temelden tureyen bloklu cakiltaslari, cakiltaslari ve kumtaslarindan olusan Kemalpasa Konglomera Uyesi ile temsil edilmektedir. Is...

The study area is located about 40 km west of the district of Söke (City of Aydın). The Söke Basin has Neogene and Quaternary successions. At the bottom, the Söke Formation unconformably overlying the basement rocks is represented by the Kemalpaşa Conglomerate Member, comprising blocky conglomerates, conglomerates and sandstones derived from the ba...

The aim of this study is to perform detailed palynological analysis of coaly sediments from the D-97 well, as well as the indicative value of non-pollen palynomorphs of the studied deposits. Moreover, its ostracod fauna is also described and interpreted for paleoenvironmental approaches. Dombayova is one of the basins that hosted by Western Anatoli...

In Pliocene the Earth stepped into a more variable climatic conditions. During Early Pliocene, evaluated climate records from a variety of areas indicate that climate was often warmer than modern climate. On the other hand in Late Pliocene it was arid-cold and climatic ocillations has relatively increased. As a consequence, ice sheets have grown in...

The study area, Beyler Dam Pond, is located at nine kilometres northwest of Devrekani town of Kastamonu. It covers 2,40 km2 aquatic surface area. Twenty one samples were collected from the littoral zone of the pond in September 2014 when shoreline retreat prevailed to reveal ostracod and diatom assemblages with other faunal and floral data. Six ge...

The Lake Eğirdir is the second largest freshwater lake of Turkey. It is located in city of Isparta and its vicinity and this area is also known as Turkish Lakes Region. It covers 480 km2 aquatic surface area and average water depth is about 7-8 m. Lake Eğirdir extends 50 km in N-S and 17 km in E-W directions. Narrowest part of the lake is about 1,5...

Çiğdem and Terzili Ponds are located in the southeastern and northwestern parts respectively of Devrekani town, Kastamonu. Comparison of mean annual precipitation rates in the last 35 years for the city of Kastamonu has shown that the lowest precipitation was realised in 2007 and arid conditions prevailed. Also, Landsat 4-5 TM images, taken between...

The genus Zonocypris (Kempf-Index: G598) was initially described from Madagascar by G.W. Müller in 1898. Since then, 18 living (Recent) species (Z. alveolata, Z. calcarata, Z. cordata, Z. corrugata, Z. costata, Z. dadayi, Z. elegans, Z. glabra, Z. hispida, Z. inconspicua, Z. inornata, Z. laevis, Z. lata, Z. lilljeborgi, Z. peralta, Z. pilosa, Z. tu...

The aim of the present study is to perform detailed palynological analysis of coaly sediments from the Akçaköy section, as well as the interpretation of palaeovegetation and palaeoclimate during the sedimentation of the studied deposits. Akçaköy section which located at the eastern margin of Dombayova graben (Afyonkarahisar), is included by Türkbel...

The study area is located about 40 km west of the district of Söke (City of Aydın). The Söke Basin has Neogene and Quaternary successions. At the bottom, the Söke Formation unconformably overlying the basement rocks is represented by the Kemalpaşa Conglomerate Member, comprising blocky conglomerates, conglomerates and sandstones derived from the ba...

The Paraceratheres, are extinct giant hornless rhinocerotoids which have been the largest land mammals that ever existed. Adult males of Paraceratherium are estimated to have been taller than 5 m at the shoulder and weight estimates are more than 10 tonnes. The Paraceratheres (synonym Indricotheres) were widespread during the Oligocene in Mongolia,...

Baluchitherium cins adı altında bilinen dev gergedanlar bugüne dek kara üzerinde yaşamış en büyük memeli hayvanlardır. Bu cinse katılan türlerin erkek fertlerinde omuz yüksekliği 5 metrenin üstünde olabilir, ağırlıkları da on tondan fazladır. Baluchitherium (=Paraceratherium) ve ona eşdeğer olarak kabul edilen Indricotherium cinsleri Oligosen dönem...

Lake Sünnet, a freshwater landslide-dammed lake in NW Anatolia, comprises a10 m thick widespread of Early-to-mid Holocene deltaic sediments. Paleo-environmental interpretation of these deposits coupled with a high-resolution data (18 yrs/sample) of stable O and C isotopes, magnetic susceptibility and total organic and carbonate contents, allows an...

The Sivas Tertiary Basin is located east of Central Anatolia and is represented by many Paleogene-Quaternary sedimentary units. In this study, Oligocene ostracoda have been investigated, and their biostratigraphic position and environmental interpretation has been stated. Twenty-four samples from five measured stratigraphic sections have been analy...

The study area is located about 40 km west of Aydın district in western Turkey. This area includes Neogene to Quaternary sediments. The Fevzipasa Formation unconformably overlies the Miocene rock units. It includes conglomerates, sandstones, mudstones, marls, limestones and tuff layers and unconformably overlain by recent deposits of the Söke – Mil...

The identification of past connection routes between the Black Sea and the Sea of Marmara, other than the traditional one through to the Bosphorus Strait, would be of considerable interest to the international scientific community. Nazik et al. (Geo-Mar Lett 31:75–86 (2011) doi:10.1007/s00367-010-0216-9) suggest the possibility of two alternative w...

Mosasaurus hoffmanni from Devrekani, Turkey is among the geologically youngest of the ancient aquatic predators. In addition, M. hoffmanni is the only Mesozoic vertebrate reported from Turkey, and has proven useful in the understanding of paleogeographic segregation within Mosasauridae. Here we provide an analysis of the histology and geochemistry...

The Afşin-Elbistan Coal Basin, which is one of the largest and most important Pliocene-Pleistocene lignite basins of Turkey, is located in Eastern Anatolia. The basin was formed between two normal faults having NE-SW direction and these faults controlled both the sedimentation and the subsidence. The coal horizon of over 50 meters in thickness indi...

The identification of past connection routes between the Black Sea and the Sea of Marmara, other than the traditional one through to the Bosphorus Strait, would be of considerable interest to the international scientific community. Nazik et al. (Geo-Mar Lett 31:75–86 ( 2011 ) doi: 10.1007/s00367-010-0216-9 ) suggest the possibility of two alternati...

The Lake Sünnet is located between Göynük and Mudurnu towns of Bolu province (NW of Türkiye) and formed as a result of landslide-damming. The lake is situated 40 km south of the North Anatolian Fault Zone and is 1030 metres above sea level. It has a 0.1 km2 surface and 11 km2 drainage areas. The maximum depth of the lake is 14–15 meters. The aim of...

Lake Çubuk is located about 15 km north of Göynük town of Bolu province (NW of Turkey) and 30 km south of the North Anatolian Fault Zone. The elevation of Lake Çubuk is 1025 meters above sea level. It has 0.16 km2 surface and 7 km2 drainage areas. The average lake water depth is 6 meters. Sixteen bottom grap samples from littoral parts of the lake...

The study area comprises about 40 km 2 and is located in the north of Seydiler town near Kastamonu city. The unit, that is widely exposed in the region, is named for the first time " Seydiler Formation ". This formation conformably overlies the Lutetian Gürleyikdere Formation at the base while it is overlain by Recent and Quaternary alluvium deposi...

Subrecent Ostracoda associations have been identified in karstic travertine deposits of the Zamantı River. In this study, seven species and three taxa left in open nomenclature (mainly of freshwater origin) were investigated: Limnocythere inopinata, Eucyprinotus rostratus, Psychodromus olivaceus, Scottia pseudobrowniana, Potomocypris fallax, Candon...

Ostracod faunas from 18 gravity offshore cores taken from S-SW of Mersin–Taşucu harbour in Turkey (Eastern Mediterranean) at water depths comprised between 285 and 665m were studied. Thirty-two (32) species have been identified. Argilloecia acuminata s.l. and Polycope cf. tholiformis are the dominant species in the studied area. The fauna correspon...

The study area is located in the southern part of the Central Anatolia Neogene Basin (north of Karapınar Town and Acı Göl, Konya). The İnsuyu Limestone Unit, which has a total thickness of 100-400 m, is composed of claystone, sandstone, conglomerate and chert. There are also andezite and pyroclastic interclations within İnsuyu limestone. The clayst...

Saros Körfezi kuzeyinde yer alan Harmantaşı mevkiinden elde edilen 46 dip sediman örneði foraminifer ve ostrakod içeriği açısından incelenmiştir. Bölgede foraminiferlerden 68 cins ve 111 bentik foraminifer türü tayin edilmiştir. Bunlar arasında aglutine tipler 12 tür ile, kalker kavkılı foraminiferler ise 99 tür ile temsil edilmiştir. Ostrakod grub...

The ammonite and inoceramid bivalve faunas of the Davutlar Formation of the Devrekani–Kastamonu area in central-north Turkey, are described. The formation yields an ammonite assemblage of Pseudophyllites indra (Forbes, 1846), Pachydiscus (Pachydiscus) haldemsis (Schlüter, 1867), Pachydiscus (Pachydiscus) oldhami (Sharpe, 1855), Didymoceras binodosu...

Volume (edited by Rolf Kohring and Benjamin Sames)-Preface The 15 th International Symposium on Ostracoda takes place in Berlin in September 2005, hosted by the Institute of Geological Sciences of the Freie Universität Berlin. This is the second time that the International Symposium on Ostracoda has been held in Germany, following the 5 th Internat...

The Paleocene and Eocene sediments of Bolu region were studied with respect to benthic foraminiferal stratigraphy and microfacies. In general, the Paleocene and Maastrichtian successions have conform contacts except for a few localities. The Paleocene shallow-sea limestones are characterized by presence of benthic foraminifers with hyaline calcareo...

The Kastamonu region, NW Turkey, is known for its rich foraminiferal marine biota and variety of deposits from Paleocene to Eocene times. The focus of this study is on the foraminiferal assemblages and microfacies analysis of the sediments. Usually Paleocene shallow water limestones overlie Maastrichtian rocks conformably. They are characterized by...

Considering the former and the recentprints of the 1/500.000 Scale Geological Maps of Turkey, an approximately 40 km2 area between Seydiler, Ağlı town and İmranlar village located at the north of Kastamonu city in westhern Blacksea Region ispresented as orange colored Eoceneflysch in the former one while in the recent as unidentifıed Çuaternary. Th...

The Konya region in central Anatolia is covered by Pliocene-Late Pleistocene sediments and volcanites related to the sediments NNW of Karapinar, Turkey. In the area, the Upper Miocene-Quaternary Üzecek Daǧi and Karacadaǧ volcanites are generally of the same age and formed from magmas of similar composition. The Karapinar formation is brown to whiti...

This study is carried out on the settings of Holocene at eastern Gulf of ̇Izmit, Adapazari, Sakarya Delta and its vicinity, and based on 86 samples collected from the boreholes. The pollen diagram, based on the data from the boreholes drilled at Adapazari and its vicinity, suggested that high herbaceous pollen percentages of particularly Chenopodia...

In this study, 33 species (ten subgenera and one indet. subgenus) of Candonidae have been taxonomically determined from the Eastern Black Sea region of Turkey. These are Candona, Caspiolla, Caspiocypris, Pontoniella, Bakunella, Lineocypris, Reticulocandona, Typhlocypris, Metacandona and indet. subgenus. Five species are described as new namely: Can...

In this study, bathimetric and horizontal distribution of benthic ostracod association from five subareas along the Istanbul strait exit, Zonguldak and Amasra coastal areas of Black Sea were examined on 19 grab samples taken from the 0-110 m depth. 39 ostracod species of 25 genera were determined of which 23 are known and 16 belonging to open nomen...

In this study, ostracod fauna of 111 core samples taken from T11, T4 and BHW2 drilling holes certified toward peripheral road and footing locations of Çanakkale Bridge in Kilitbahir (Eceabat/ Çanakkale) region have been examined. As a result of these investigations, 2 new of total 27 species belonging to 10 genera from 8 different families have bee...

Leptocytheridae Hanai and Cytherideidae Sars and their genera are well known biostratigraphically and choronostratigraphically in all of the Paratethys basins during the Pontian age. The fauna described includes fourteen species, five known, five yet unnamed and four new species which belong to the above families. The species are Leptocythere (Amni...

In this investigation, 205 samples were collected from five measured stratigraphic sections in the Kasaba Basin (Kaş/Antalya, SW Turkey) and 16 genera and 33 species of ostracods were identified. Three different biozones have been recognized on the basis of the stratigraphic and geographic distribution of ostracod fauna in the measured sections whi...

The lower part of the Late Cretaceous Tomalar Formation (Devrekani Basin, Central Pontides, northern Turkey) is characterized by the presence of light-green ribbon cherts and cherty mudstones (approximately 10 m thick) with abundant well-preserved Radiolaria. The presence and coexistence of such taxa as Acaeniotyle macrospina, Archaeospongoprunum s...