{"title":"Globidiscus n. gen. (Foraminifera, Neodiscidae): A new Late Guadalupian genus from the Karakaya Complex, Northwest Anatolia (Turkey)","authors":"C. Okuyucu","doi":"10.47894/mpal.67.6.02","DOIUrl":null,"url":null,"abstract":"The Karakaya Complex in northern Turkey is classically subdivided into two units (Upper and Lower Karakaya Complex) and located in the Sakarya Composite Terrane. The Upper Karakaya Complex includes different blocks and tectonic slices within a Triassic matrix. A new genus of miliolid foraminifera (Cornuspiroidea, Neodiscidae) is established from the late Capitanian (latest Guadalupian) neritic limestone block from the Upper Karakaya Complex. The new genus Globidiscus is characterized by a large, inflated lenticular in the axial and subglobular in transverse section and involute test with well-developed flosculinisation and a porcelaneous wall with buttresses. It was probably derived from the Praeneodiscus-Neodiscus lineage in late Capitanian (Guadalupian).","PeriodicalId":49816,"journal":{"name":"Micropaleontology","volume":null,"pages":null},"PeriodicalIF":1.3000,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Micropaleontology","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.47894/mpal.67.6.02","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PALEONTOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
The Karakaya Complex in northern Turkey is classically subdivided into two units (Upper and Lower Karakaya Complex) and located in the Sakarya Composite Terrane. The Upper Karakaya Complex includes different blocks and tectonic slices within a Triassic matrix. A new genus of miliolid foraminifera (Cornuspiroidea, Neodiscidae) is established from the late Capitanian (latest Guadalupian) neritic limestone block from the Upper Karakaya Complex. The new genus Globidiscus is characterized by a large, inflated lenticular in the axial and subglobular in transverse section and involute test with well-developed flosculinisation and a porcelaneous wall with buttresses. It was probably derived from the Praeneodiscus-Neodiscus lineage in late Capitanian (Guadalupian).
期刊介绍：
The Journal of Micropalaeontology (JM) is an established international journal covering all aspects of microfossils and their application to both applied studies and basic research. In particular we welcome submissions relating to microfossils and their application to palaeoceanography, palaeoclimatology, palaeobiology, evolution, taxonomy, environmental change and molecular phylogeny. Owned by The Micropalaeontological Society, the scope of the journal is broad, demonstrating the application of microfossils to solving broad geoscience issues.
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