A catalogue of Danian gastropods from the Baunekule facies, Faxe Formation, Denmark
This catalogue of 194 gastropod taxa is based on the collection of Danian gastropods from the Baunekule facies, Faxe Formation in eastern Denmark. The gastropod fauna is extremely rich and well preserved. Most of the gastropods (106 species) are referred to genus level only, 9 morphotypes to even hi...
Published in: | Geological Survey of Denmark and Greenland (GEUS) Bulletin |
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Language: | English |
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Geological Survey of Denmark and Greenland (GEUS)
2014
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Online Access: | https://geusbulletin.org/index.php/geusb/article/view/4593 https://doi.org/10.34194/geusb.v32.4593 |
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ftjgeusbullet:oai:geusjournals.org:article/4593 2023-05-15T17:37:11+02:00 A catalogue of Danian gastropods from the Baunekule facies, Faxe Formation, Denmark Lauridsen, Bodil W. Ingemann Schnetler, Kai 2014-12-30 application/pdf https://geusbulletin.org/index.php/geusb/article/view/4593 https://doi.org/10.34194/geusb.v32.4593 eng eng Geological Survey of Denmark and Greenland (GEUS) https://geusbulletin.org/index.php/geusb/article/view/4593/10249 https://geusbulletin.org/index.php/geusb/article/view/4593 doi:10.34194/geusb.v32.4593 GEUS Bulletin; Vol. 32 (2014): A catalogue of Danian gastropods from the Baunekule facies, Faxe Formation, Denmark; 1-117 2597-2154 2597-2162 Gastropods Denmark info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed single-volume work. Submissions strictly by arrangement with the editorial office. 2014 ftjgeusbullet https://doi.org/10.34194/geusb.v32.4593 2022-03-15T17:22:10Z This catalogue of 194 gastropod taxa is based on the collection of Danian gastropods from the Baunekule facies, Faxe Formation in eastern Denmark. The gastropod fauna is extremely rich and well preserved. Most of the gastropods (106 species) are referred to genus level only, 9 morphotypes to even higher taxonomical levels and 79 gastropods are referred to species level. The gastropods are classified following Bouchet & Rocroi (2005) as 4 different clades: Vetigastropoda (represented by 26 species and 10 superfamilies), Caenogastropoda (represented by 142 species and 17 superfamilies), Heterobranchia (represented by 23 species and 5 superfamilies) and Opisthobranchia (represented by 1 species and 1 superfamily). The new species Zaclys? nuetzeli n. sp. is introduced. The Faxe Formation is recognised as a cold-water coral ecosystem with interfingering smaller bryozoan mounds. The Baunekule facies is found in the upper part of the coral mound complex of the Faxe Formation, where it forms isolated lensoidal bodies in the flanks of some of the coral mounds. It is characterised by a high diversity invertebrate fauna that occurs in weakly consolidated coraldominated floatstone to rudstone. The diagenesis of the Baunekule facies is of special significance because a high proportion of the originally aragonite-shelled fauna is preserved by recrystallization to calcite during early burial diagenesis. Most of the gastropods are not known from other parts of the Faxe Fm. The fauna is very important for comparative evolutionary studies of fossil and modern gastropods on cold-water coral mounds. Many of the genera have not previously been recorded from Danian strata. None of the gastropod species found in the Baunekule facies are known for certain to range below the Cretaceous–Palaeogene boundary. The fauna is comparable to gastropods found on modern cold-water coral mounds in the North Atlantic. The gastropod fauna from the Baunekule facies is characterised by a very high diversity of rather small millimetre-sized gastropods with a preference for hard substrates; 63.9% of the taxa belong to the browsing carnivore trophic group, feeding mainly on sedentary animals. Surprisingly, the fauna contains some common occurrences of typically warm-water species. The fauna consists mostly of Cenozoic genera and up to 87% of the species may be endemic to the cold-water coral ecosystem of the Faxe Formation. The diverse and rather unusual gastropod fauna from the Baunekule facies is undoubtedly linked to the evolution of cold-water coral ecosystems. Article in Journal/Newspaper North Atlantic GEUS Bulletin (Geological Survey of Denmark and Greenland) Geological Survey of Denmark and Greenland (GEUS) Bulletin 32 1 117 |
institution |
Open Polar |
collection |
GEUS Bulletin (Geological Survey of Denmark and Greenland) |
op_collection_id |
ftjgeusbullet |
language |
English |
topic |
Gastropods Denmark |
spellingShingle |
Gastropods Denmark Lauridsen, Bodil W. Ingemann Schnetler, Kai A catalogue of Danian gastropods from the Baunekule facies, Faxe Formation, Denmark |
topic_facet |
Gastropods Denmark |
description |
This catalogue of 194 gastropod taxa is based on the collection of Danian gastropods from the Baunekule facies, Faxe Formation in eastern Denmark. The gastropod fauna is extremely rich and well preserved. Most of the gastropods (106 species) are referred to genus level only, 9 morphotypes to even higher taxonomical levels and 79 gastropods are referred to species level. The gastropods are classified following Bouchet & Rocroi (2005) as 4 different clades: Vetigastropoda (represented by 26 species and 10 superfamilies), Caenogastropoda (represented by 142 species and 17 superfamilies), Heterobranchia (represented by 23 species and 5 superfamilies) and Opisthobranchia (represented by 1 species and 1 superfamily). The new species Zaclys? nuetzeli n. sp. is introduced. The Faxe Formation is recognised as a cold-water coral ecosystem with interfingering smaller bryozoan mounds. The Baunekule facies is found in the upper part of the coral mound complex of the Faxe Formation, where it forms isolated lensoidal bodies in the flanks of some of the coral mounds. It is characterised by a high diversity invertebrate fauna that occurs in weakly consolidated coraldominated floatstone to rudstone. The diagenesis of the Baunekule facies is of special significance because a high proportion of the originally aragonite-shelled fauna is preserved by recrystallization to calcite during early burial diagenesis. Most of the gastropods are not known from other parts of the Faxe Fm. The fauna is very important for comparative evolutionary studies of fossil and modern gastropods on cold-water coral mounds. Many of the genera have not previously been recorded from Danian strata. None of the gastropod species found in the Baunekule facies are known for certain to range below the Cretaceous–Palaeogene boundary. The fauna is comparable to gastropods found on modern cold-water coral mounds in the North Atlantic. The gastropod fauna from the Baunekule facies is characterised by a very high diversity of rather small millimetre-sized gastropods with a preference for hard substrates; 63.9% of the taxa belong to the browsing carnivore trophic group, feeding mainly on sedentary animals. Surprisingly, the fauna contains some common occurrences of typically warm-water species. The fauna consists mostly of Cenozoic genera and up to 87% of the species may be endemic to the cold-water coral ecosystem of the Faxe Formation. The diverse and rather unusual gastropod fauna from the Baunekule facies is undoubtedly linked to the evolution of cold-water coral ecosystems. |
format |
Article in Journal/Newspaper |
author |
Lauridsen, Bodil W. Ingemann Schnetler, Kai |
author_facet |
Lauridsen, Bodil W. Ingemann Schnetler, Kai |
author_sort |
Lauridsen, Bodil W. |
title |
A catalogue of Danian gastropods from the Baunekule facies, Faxe Formation, Denmark |
title_short |
A catalogue of Danian gastropods from the Baunekule facies, Faxe Formation, Denmark |
title_full |
A catalogue of Danian gastropods from the Baunekule facies, Faxe Formation, Denmark |
title_fullStr |
A catalogue of Danian gastropods from the Baunekule facies, Faxe Formation, Denmark |
title_full_unstemmed |
A catalogue of Danian gastropods from the Baunekule facies, Faxe Formation, Denmark |
title_sort |
catalogue of danian gastropods from the baunekule facies, faxe formation, denmark |
publisher |
Geological Survey of Denmark and Greenland (GEUS) |
publishDate |
2014 |
url |
https://geusbulletin.org/index.php/geusb/article/view/4593 https://doi.org/10.34194/geusb.v32.4593 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
GEUS Bulletin; Vol. 32 (2014): A catalogue of Danian gastropods from the Baunekule facies, Faxe Formation, Denmark; 1-117 2597-2154 2597-2162 |
op_relation |
https://geusbulletin.org/index.php/geusb/article/view/4593/10249 https://geusbulletin.org/index.php/geusb/article/view/4593 doi:10.34194/geusb.v32.4593 |
op_doi |
https://doi.org/10.34194/geusb.v32.4593 |
container_title |
Geological Survey of Denmark and Greenland (GEUS) Bulletin |
container_volume |
32 |
container_start_page |
1 |
op_container_end_page |
117 |
_version_ |
1766136976771121152 |