Cenomanio planktoninių foraminiferų įvairovė Lietuvoje
Cretaceous planktonic foraminifera haven't been given extensive studies in Lithuania. Best investigated are Jurassic and Cretaceous benthic foraminifers.On the basis of foraminifera A.Grigelis (1963) distinguished two zones in the Cenomanian of Lithuania, which are Gavelinella cenomanica zone i...
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ftlitinstagrecon:oai:elaba:5494730 2023-05-15T18:00:23+02:00 Cenomanio planktoninių foraminiferų įvairovė Lietuvoje Diversity of the cenomanian planktonic foraminifera in Lithuania Venckutė-Aleksienė, Agnė 2005 http://lsmu.lvb.lt/LSMU:ELABAPDB5494730&prefLang=en_US lit eng lit eng http://lsmu.lvb.lt/LSMU:ELABAPDB5494730&prefLang=en_US Geologija, 2005, Nr. 49, p. 48-58 ISSN 1392-110X Paleontology Biostratigraphy Planktonic Foraminifera Cenomanian Lithuania info:eu-repo/semantics/article 2005 ftlitinstagrecon 2021-12-02T01:33:58Z Cretaceous planktonic foraminifera haven't been given extensive studies in Lithuania. Best investigated are Jurassic and Cretaceous benthic foraminifers.On the basis of foraminifera A.Grigelis (1963) distinguished two zones in the Cenomanian of Lithuania, which are Gavelinella cenomanica zone in the Lower Cenomanian and Lingulogavelinella globosa zone in the Upper Cenomanian.In the current work 129 sampies from 17 boreholes of Lithuania were investigated.The results showed that planktonic foraminiferal fauna had been neither numerous nor various in Lithuania,Fifteen planktonic foraminifera species were determined.They belong to the Suborder Globigerinina Delage &Herouard,1896,the superfamily Planomali'nacea Bolli,Loeblich& Tappan,1957,the family HedbergeJIidae Loeblich&Tappan, 1961 and the subfamilies Hedbergellinae Loeblich Tappan, 1961, Rotundininae Bellier&Salaj, 1977,Whiteinellinae Salaj,1987, Concavatotruncaninae Korchagin, 2001.Most abundant species were Hedbergella portsdownensis (Williams-Mitchell,1948), Hedbergella delrioemis(Carsey, 1926),Hedbergella brittonensis Loeblich&Tappan,1961,Hedbergella planispira(Tappan,1940), Praeglobotruncana delrioensis (Plummet,1931),Praeglobotmncana stephani(Gandolfi,1942).Probably the reason for such a poor fauna is that the Lithuanian territory was located on the margin of the sea basin and the conditions(salinity, temperature,depth, currents) were not good for foraminifera.The genus Rotalipora was not found in samples from the Lithuanian territory.It is broadly distributed in the neighbouring regions.This genus is very important hi distinguishing planktonic foraminiferal zones.S. Abramavičiūtė-Garunkštienė in her publication (Abramavičiūte,1957) reported that she had found Rotalipora appenninica(Renz) species, but she provided neither description nor illustrations,and the collection is missing, either. Therefore the question of the existence of Rotalipora in the Lithuanian territory remains Lithuanian terr. Article in Journal/Newspaper Planktonic foraminifera LAEI VL (Lithuanian Institute of Agrarian Economics Virtual Library) |
institution |
Open Polar |
collection |
LAEI VL (Lithuanian Institute of Agrarian Economics Virtual Library) |
op_collection_id |
ftlitinstagrecon |
language |
Lithuanian English |
topic |
Paleontology Biostratigraphy Planktonic Foraminifera Cenomanian Lithuania |
spellingShingle |
Paleontology Biostratigraphy Planktonic Foraminifera Cenomanian Lithuania Venckutė-Aleksienė, Agnė Cenomanio planktoninių foraminiferų įvairovė Lietuvoje |
topic_facet |
Paleontology Biostratigraphy Planktonic Foraminifera Cenomanian Lithuania |
description |
Cretaceous planktonic foraminifera haven't been given extensive studies in Lithuania. Best investigated are Jurassic and Cretaceous benthic foraminifers.On the basis of foraminifera A.Grigelis (1963) distinguished two zones in the Cenomanian of Lithuania, which are Gavelinella cenomanica zone in the Lower Cenomanian and Lingulogavelinella globosa zone in the Upper Cenomanian.In the current work 129 sampies from 17 boreholes of Lithuania were investigated.The results showed that planktonic foraminiferal fauna had been neither numerous nor various in Lithuania,Fifteen planktonic foraminifera species were determined.They belong to the Suborder Globigerinina Delage &Herouard,1896,the superfamily Planomali'nacea Bolli,Loeblich& Tappan,1957,the family HedbergeJIidae Loeblich&Tappan, 1961 and the subfamilies Hedbergellinae Loeblich Tappan, 1961, Rotundininae Bellier&Salaj, 1977,Whiteinellinae Salaj,1987, Concavatotruncaninae Korchagin, 2001.Most abundant species were Hedbergella portsdownensis (Williams-Mitchell,1948), Hedbergella delrioemis(Carsey, 1926),Hedbergella brittonensis Loeblich&Tappan,1961,Hedbergella planispira(Tappan,1940), Praeglobotruncana delrioensis (Plummet,1931),Praeglobotmncana stephani(Gandolfi,1942).Probably the reason for such a poor fauna is that the Lithuanian territory was located on the margin of the sea basin and the conditions(salinity, temperature,depth, currents) were not good for foraminifera.The genus Rotalipora was not found in samples from the Lithuanian territory.It is broadly distributed in the neighbouring regions.This genus is very important hi distinguishing planktonic foraminiferal zones.S. Abramavičiūtė-Garunkštienė in her publication (Abramavičiūte,1957) reported that she had found Rotalipora appenninica(Renz) species, but she provided neither description nor illustrations,and the collection is missing, either. Therefore the question of the existence of Rotalipora in the Lithuanian territory remains Lithuanian terr. |
format |
Article in Journal/Newspaper |
author |
Venckutė-Aleksienė, Agnė |
author_facet |
Venckutė-Aleksienė, Agnė |
author_sort |
Venckutė-Aleksienė, Agnė |
title |
Cenomanio planktoninių foraminiferų įvairovė Lietuvoje |
title_short |
Cenomanio planktoninių foraminiferų įvairovė Lietuvoje |
title_full |
Cenomanio planktoninių foraminiferų įvairovė Lietuvoje |
title_fullStr |
Cenomanio planktoninių foraminiferų įvairovė Lietuvoje |
title_full_unstemmed |
Cenomanio planktoninių foraminiferų įvairovė Lietuvoje |
title_sort |
cenomanio planktoninių foraminiferų įvairovė lietuvoje |
publishDate |
2005 |
url |
http://lsmu.lvb.lt/LSMU:ELABAPDB5494730&prefLang=en_US |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
Geologija, 2005, Nr. 49, p. 48-58 ISSN 1392-110X |
op_relation |
http://lsmu.lvb.lt/LSMU:ELABAPDB5494730&prefLang=en_US |
_version_ |
1766169444768284672 |