<i>Desmocysta hadra</i>, a new Late Cretaceous dinoflagellate cyst species: stratigraphic range, palaeogeographic distribution and palaeoecology
<p>A new species of dinoflagellate cyst, <i>Desmocysta hadra</i> sp. nov., is described from the early Campanian (Late Cretaceous) in the Norwegian Sea. This new taxon differs from the other three known species by its particularly robust but highly folded wall and the short, fine f...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2020-10-01
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| Series: | Journal of Micropalaeontology |
| Online Access: | https://jm.copernicus.org/articles/39/155/2020/jm-39-155-2020.pdf |
| _version_ | 1818442126047838208 |
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| author | M. Vieira S. Mahdi |
| author_facet | M. Vieira S. Mahdi |
| author_sort | M. Vieira |
| collection | DOAJ |
| description | <p>A new species of dinoflagellate cyst, <i>Desmocysta hadra</i> sp. nov., is described from the early
Campanian (Late Cretaceous) in the Norwegian Sea. This new taxon differs
from the other three known species by its particularly robust but highly
folded wall and the short, fine filaments arising from the antapex. The
short stratigraphic range of early Campanian for this new species was
calibrated with other regional well-dated dinoflagellate cysts, making it a
good biostratigraphic marker. A review of the taxonomic description of the
genus has also been undertaken using the available published data. The
available data shows a consistent presence of <i>Desmocysta</i> in the fossil record from the
Early Cretaceous to the late Paleocene, although some Late Jurassic
occurrences have been reported in the North Sea Basin. The current records
also indicate that this genus is restricted to higher latitudes in the
Northern Hemisphere. Based on Paleocene and Late Cretaceous occurrences of
the genus, and its association with dinoflagellate cysts, prasinophytes and
acritarchs, a proximal, highly stressed marine environment for <i>Desmocysta</i> is
suggested.</p> |
| first_indexed | 2024-12-14T18:39:11Z |
| format | Article |
| id | doaj.art-07d0b2747f3b4b4ba6ae3c78351db495 |
| institution | Directory Open Access Journal |
| issn | 0262-821X 2041-4978 |
| language | English |
| last_indexed | 2024-12-14T18:39:11Z |
| publishDate | 2020-10-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Journal of Micropalaeontology |
| spelling | doaj.art-07d0b2747f3b4b4ba6ae3c78351db4952022-12-21T22:51:32ZengCopernicus PublicationsJournal of Micropalaeontology0262-821X2041-49782020-10-013915516710.5194/jm-39-155-2020<i>Desmocysta hadra</i>, a new Late Cretaceous dinoflagellate cyst species: stratigraphic range, palaeogeographic distribution and palaeoecologyM. Vieira0S. Mahdi1Shell UK Ltd., 1 Altens Farm Road, Nigg, Aberdeen, AB12 3FY, UKRPS Energy Ltd., Century House, Gadbrook Business Centre, Northwich, Cheshire, CW9 7TL, UK<p>A new species of dinoflagellate cyst, <i>Desmocysta hadra</i> sp. nov., is described from the early Campanian (Late Cretaceous) in the Norwegian Sea. This new taxon differs from the other three known species by its particularly robust but highly folded wall and the short, fine filaments arising from the antapex. The short stratigraphic range of early Campanian for this new species was calibrated with other regional well-dated dinoflagellate cysts, making it a good biostratigraphic marker. A review of the taxonomic description of the genus has also been undertaken using the available published data. The available data shows a consistent presence of <i>Desmocysta</i> in the fossil record from the Early Cretaceous to the late Paleocene, although some Late Jurassic occurrences have been reported in the North Sea Basin. The current records also indicate that this genus is restricted to higher latitudes in the Northern Hemisphere. Based on Paleocene and Late Cretaceous occurrences of the genus, and its association with dinoflagellate cysts, prasinophytes and acritarchs, a proximal, highly stressed marine environment for <i>Desmocysta</i> is suggested.</p>https://jm.copernicus.org/articles/39/155/2020/jm-39-155-2020.pdf |
| spellingShingle | M. Vieira S. Mahdi <i>Desmocysta hadra</i>, a new Late Cretaceous dinoflagellate cyst species: stratigraphic range, palaeogeographic distribution and palaeoecology Journal of Micropalaeontology |
| title | <i>Desmocysta hadra</i>, a new Late Cretaceous dinoflagellate cyst species: stratigraphic range, palaeogeographic distribution and palaeoecology |
| title_full | <i>Desmocysta hadra</i>, a new Late Cretaceous dinoflagellate cyst species: stratigraphic range, palaeogeographic distribution and palaeoecology |
| title_fullStr | <i>Desmocysta hadra</i>, a new Late Cretaceous dinoflagellate cyst species: stratigraphic range, palaeogeographic distribution and palaeoecology |
| title_full_unstemmed | <i>Desmocysta hadra</i>, a new Late Cretaceous dinoflagellate cyst species: stratigraphic range, palaeogeographic distribution and palaeoecology |
| title_short | <i>Desmocysta hadra</i>, a new Late Cretaceous dinoflagellate cyst species: stratigraphic range, palaeogeographic distribution and palaeoecology |
| title_sort | i desmocysta hadra i a new late cretaceous dinoflagellate cyst species stratigraphic range palaeogeographic distribution and palaeoecology |
| url | https://jm.copernicus.org/articles/39/155/2020/jm-39-155-2020.pdf |
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