Decastronema barattoloi (DE CASTRO), characteristic fossil of the Palaeocene and the Eocene peritidal sediments from the Adriatic carbonate platform
The renewed deposition in the Palaeogene and the oldest part of the non-interrupted Palaeocene succession is characterized by the presence of Decastronema barattoloi (DE CASTRO), cyanobacterial tubes originally described in the Apennines. The reinterpretation of limestones from several sections loca...
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| Format: | Article |
| Language: | English |
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Croatian Geological Survey
2008-12-01
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| Series: | Geologia Croatica |
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| Online Access: | http://www.geologia-croatica.hr/ojs/index.php/GC/article/view/33 |
| _version_ | 1818320553634693120 |
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| author | Vlasta Ćosović Katica Drobne Bojan Ogorelec Alan Moro Mladen Koić Ivan Šoštarko Alceo Tarlao Giorgio Tunis |
| author_facet | Vlasta Ćosović Katica Drobne Bojan Ogorelec Alan Moro Mladen Koić Ivan Šoštarko Alceo Tarlao Giorgio Tunis |
| author_sort | Vlasta Ćosović |
| collection | DOAJ |
| description | The renewed deposition in the Palaeogene and the oldest part of the non-interrupted Palaeocene succession is characterized by the presence of Decastronema barattoloi (DE CASTRO), cyanobacterial tubes originally described in the Apennines. The reinterpretation of limestones from several sections located in the Kras region (NW part of the AdCP: Basovizza, Dolenja vas, Sopada, ?ebulovica) confi rmed the presence of these microfossils in peritidal sediments of Danian age (SBZ 1). The Cuisian (Late Lower Eocene) sediments, from eastern Istria (Brnjci section), Cres Island (Koroma?na Cove section) and Ravni kotari (Benkovac–Korlat section) contain individuals of this species in great numbers. The cyanobacterial tubes are scattered in laminated, fi ne grained mudstones and wackestones, immediately above the Cretaceous sediments (occasionally above bauxites or breccias). The Decastronema-bearing sediments pass upward into the Foraminiferal limestones of Cuisian age (SBZ 11, based on conical agglutinated foraminifera and alveolinids), allowing the age determination of the cyanobacterial remnants. The Palaeocene specimens are minute (up to about 180 ?m long), thick walled tubes that occur with the index fossil Bangiana hanseni DROBNE. The Eocene forms accompanied by ostracods, pelecypods, and miliolid and rotaliid foraminifera are segmented tubes, up to 400 mm long and usually thin walled. |
| first_indexed | 2024-12-13T10:26:50Z |
| format | Article |
| id | doaj.art-6961865832904b1f8778988ed97e4bbe |
| institution | Directory Open Access Journal |
| issn | 1330-030X 1333-4875 |
| language | English |
| last_indexed | 2024-12-13T10:26:50Z |
| publishDate | 2008-12-01 |
| publisher | Croatian Geological Survey |
| record_format | Article |
| series | Geologia Croatica |
| spelling | doaj.art-6961865832904b1f8778988ed97e4bbe2022-12-21T23:51:00ZengCroatian Geological SurveyGeologia Croatica1330-030X1333-48752008-12-01612-332133210.4154/GC.2008.2434Decastronema barattoloi (DE CASTRO), characteristic fossil of the Palaeocene and the Eocene peritidal sediments from the Adriatic carbonate platformVlasta Ćosović0Katica Drobne1Bojan Ogorelec2Alan Moro3Mladen Koić4Ivan Šoštarko5Alceo Tarlao6Giorgio Tunis7Department of Geology and Palaeontology, Faculty of SciencePalaeontological Institute I. Rakovec ZRC SAZUGeological Survey of SloveniaDepartment of Geology and Palaeontology, Faculty of ScienceDepartment of Geology, Faculty of Science, University of ZagrebDepartment of Geology, Faculty of Science, University of ZagrebMuseo Paleontologico Cittadino di MonfalconeDipartimento di Scienze Gelogiche, Ambientali e Marine, Università di TriesteThe renewed deposition in the Palaeogene and the oldest part of the non-interrupted Palaeocene succession is characterized by the presence of Decastronema barattoloi (DE CASTRO), cyanobacterial tubes originally described in the Apennines. The reinterpretation of limestones from several sections located in the Kras region (NW part of the AdCP: Basovizza, Dolenja vas, Sopada, ?ebulovica) confi rmed the presence of these microfossils in peritidal sediments of Danian age (SBZ 1). The Cuisian (Late Lower Eocene) sediments, from eastern Istria (Brnjci section), Cres Island (Koroma?na Cove section) and Ravni kotari (Benkovac–Korlat section) contain individuals of this species in great numbers. The cyanobacterial tubes are scattered in laminated, fi ne grained mudstones and wackestones, immediately above the Cretaceous sediments (occasionally above bauxites or breccias). The Decastronema-bearing sediments pass upward into the Foraminiferal limestones of Cuisian age (SBZ 11, based on conical agglutinated foraminifera and alveolinids), allowing the age determination of the cyanobacterial remnants. The Palaeocene specimens are minute (up to about 180 ?m long), thick walled tubes that occur with the index fossil Bangiana hanseni DROBNE. The Eocene forms accompanied by ostracods, pelecypods, and miliolid and rotaliid foraminifera are segmented tubes, up to 400 mm long and usually thin walled.http://www.geologia-croatica.hr/ojs/index.php/GC/article/view/33Decastronema barattoloi, Adriatic carbonate platform, Palaeocene, Eocene, Peritidal Environment |
| spellingShingle | Vlasta Ćosović Katica Drobne Bojan Ogorelec Alan Moro Mladen Koić Ivan Šoštarko Alceo Tarlao Giorgio Tunis Decastronema barattoloi (DE CASTRO), characteristic fossil of the Palaeocene and the Eocene peritidal sediments from the Adriatic carbonate platform Geologia Croatica Decastronema barattoloi, Adriatic carbonate platform, Palaeocene, Eocene, Peritidal Environment |
| title | Decastronema barattoloi (DE CASTRO), characteristic fossil of the Palaeocene and the Eocene peritidal sediments from the Adriatic carbonate platform |
| title_full | Decastronema barattoloi (DE CASTRO), characteristic fossil of the Palaeocene and the Eocene peritidal sediments from the Adriatic carbonate platform |
| title_fullStr | Decastronema barattoloi (DE CASTRO), characteristic fossil of the Palaeocene and the Eocene peritidal sediments from the Adriatic carbonate platform |
| title_full_unstemmed | Decastronema barattoloi (DE CASTRO), characteristic fossil of the Palaeocene and the Eocene peritidal sediments from the Adriatic carbonate platform |
| title_short | Decastronema barattoloi (DE CASTRO), characteristic fossil of the Palaeocene and the Eocene peritidal sediments from the Adriatic carbonate platform |
| title_sort | decastronema barattoloi de castro characteristic fossil of the palaeocene and the eocene peritidal sediments from the adriatic carbonate platform |
| topic | Decastronema barattoloi, Adriatic carbonate platform, Palaeocene, Eocene, Peritidal Environment |
| url | http://www.geologia-croatica.hr/ojs/index.php/GC/article/view/33 |
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