Ovummuridae (calcareous microfossils) from a Late Devonian ramp: their distribution, preservation potential, and paleoecological significance
Enigmatic calcareous microfossils that belong to the Ovummuridae Munnecke, Servais, and Vachard, 2000 are present in ten cores through the upper part of the Escarpment Formation and Alexandra Formation in the Hay River area of the Northwest Territories, Canada. These Late Devonian (Frasnian) silicic...
Published in: | Canadian Journal of Earth Sciences |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
2006
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/e05-105 http://www.nrcresearchpress.com/doi/pdf/10.1139/e05-105 |
id |
crcansciencepubl:10.1139/e05-105 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/e05-105 2023-12-17T10:31:18+01:00 Ovummuridae (calcareous microfossils) from a Late Devonian ramp: their distribution, preservation potential, and paleoecological significance MacNeil, Alex J Jones, Brian 2006 http://dx.doi.org/10.1139/e05-105 http://www.nrcresearchpress.com/doi/pdf/10.1139/e05-105 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 43, issue 3, page 269-280 ISSN 0008-4077 1480-3313 General Earth and Planetary Sciences journal-article 2006 crcansciencepubl https://doi.org/10.1139/e05-105 2023-11-19T13:38:21Z Enigmatic calcareous microfossils that belong to the Ovummuridae Munnecke, Servais, and Vachard, 2000 are present in ten cores through the upper part of the Escarpment Formation and Alexandra Formation in the Hay River area of the Northwest Territories, Canada. These Late Devonian (Frasnian) siliciclastic, mixed carbonatesiliciclastic, and carbonate ramp deposits accumulated on the western margin of Laurussia. Finding ovummurids in these deposits is significant because it provides the first formal documentation that these microorganisms existed in the Devonian and confirms that the stratigraphic range of the family extends from the Lower Silurian to Upper Permian. The microfossils, which are of unknown biological affinity, include Minourella gotlandica, previously known only from Silurian strata, Ovummurus duoportius, and Minourella cameroni sp. nov. The preservation potential of these microfossils was markedly enhanced by thick cement overgrowths, akin to the syntaxial overgrowths that are common on Paleozoic crinoid fragments. The distribution of ovummurids in these ramp deposits is significant because it demonstrates that ovummurids were capable of inhabiting turbid, likely nutrient-enriched marine environments, with significant siliciclastic influx, that were unsuitable for most other carbonate-secreting organisms in the Paleozoic. Article in Journal/Newspaper Hay River Northwest Territories Canadian Science Publishing (via Crossref) Northwest Territories Canada Hay River ENVELOPE(-115.847,-115.847,60.787,60.787) Canadian Journal of Earth Sciences 43 3 269 280 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Earth and Planetary Sciences |
spellingShingle |
General Earth and Planetary Sciences MacNeil, Alex J Jones, Brian Ovummuridae (calcareous microfossils) from a Late Devonian ramp: their distribution, preservation potential, and paleoecological significance |
topic_facet |
General Earth and Planetary Sciences |
description |
Enigmatic calcareous microfossils that belong to the Ovummuridae Munnecke, Servais, and Vachard, 2000 are present in ten cores through the upper part of the Escarpment Formation and Alexandra Formation in the Hay River area of the Northwest Territories, Canada. These Late Devonian (Frasnian) siliciclastic, mixed carbonatesiliciclastic, and carbonate ramp deposits accumulated on the western margin of Laurussia. Finding ovummurids in these deposits is significant because it provides the first formal documentation that these microorganisms existed in the Devonian and confirms that the stratigraphic range of the family extends from the Lower Silurian to Upper Permian. The microfossils, which are of unknown biological affinity, include Minourella gotlandica, previously known only from Silurian strata, Ovummurus duoportius, and Minourella cameroni sp. nov. The preservation potential of these microfossils was markedly enhanced by thick cement overgrowths, akin to the syntaxial overgrowths that are common on Paleozoic crinoid fragments. The distribution of ovummurids in these ramp deposits is significant because it demonstrates that ovummurids were capable of inhabiting turbid, likely nutrient-enriched marine environments, with significant siliciclastic influx, that were unsuitable for most other carbonate-secreting organisms in the Paleozoic. |
format |
Article in Journal/Newspaper |
author |
MacNeil, Alex J Jones, Brian |
author_facet |
MacNeil, Alex J Jones, Brian |
author_sort |
MacNeil, Alex J |
title |
Ovummuridae (calcareous microfossils) from a Late Devonian ramp: their distribution, preservation potential, and paleoecological significance |
title_short |
Ovummuridae (calcareous microfossils) from a Late Devonian ramp: their distribution, preservation potential, and paleoecological significance |
title_full |
Ovummuridae (calcareous microfossils) from a Late Devonian ramp: their distribution, preservation potential, and paleoecological significance |
title_fullStr |
Ovummuridae (calcareous microfossils) from a Late Devonian ramp: their distribution, preservation potential, and paleoecological significance |
title_full_unstemmed |
Ovummuridae (calcareous microfossils) from a Late Devonian ramp: their distribution, preservation potential, and paleoecological significance |
title_sort |
ovummuridae (calcareous microfossils) from a late devonian ramp: their distribution, preservation potential, and paleoecological significance |
publisher |
Canadian Science Publishing |
publishDate |
2006 |
url |
http://dx.doi.org/10.1139/e05-105 http://www.nrcresearchpress.com/doi/pdf/10.1139/e05-105 |
long_lat |
ENVELOPE(-115.847,-115.847,60.787,60.787) |
geographic |
Northwest Territories Canada Hay River |
geographic_facet |
Northwest Territories Canada Hay River |
genre |
Hay River Northwest Territories |
genre_facet |
Hay River Northwest Territories |
op_source |
Canadian Journal of Earth Sciences volume 43, issue 3, page 269-280 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e05-105 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
43 |
container_issue |
3 |
container_start_page |
269 |
op_container_end_page |
280 |
_version_ |
1785584529900044288 |