Ordovician trilobites from the Romaine and Mingan formations (Ibexian-late Whiterockian), Mingan Islands, Quebec
The Romaine Formation of the Mingan Islands, Québec, contains a limited trilobite fauna of five genera ( Bolbocephalus, Peltabellia, Petigurus, Strigigenalis, Strotactinus ) with Lower Ordovician Ibexian (Floian) affinity, succeeded by two genera ( Acidiphorus, Pseudomera ) of early Middle Ordovicia...
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crcambridgeupr:10.1666/10-062.1 2024-04-28T08:32:50+00:00 Ordovician trilobites from the Romaine and Mingan formations (Ibexian-late Whiterockian), Mingan Islands, Quebec Shaw, Frederick C. Bolton, Thomas E. 2011 http://dx.doi.org/10.1666/10-062.1 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022336000047557 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Journal of Paleontology volume 85, issue 3, page 406-441 ISSN 0022-3360 1937-2337 Paleontology journal-article 2011 crcambridgeupr https://doi.org/10.1666/10-062.1 2024-04-09T06:55:26Z The Romaine Formation of the Mingan Islands, Québec, contains a limited trilobite fauna of five genera ( Bolbocephalus, Peltabellia, Petigurus, Strigigenalis, Strotactinus ) with Lower Ordovician Ibexian (Floian) affinity, succeeded by two genera ( Acidiphorus, Pseudomera ) of early Middle Ordovician Whiterockian (Dapingian) affinity. Trilobites of later Whiterockian (Darriwillian) affinity are more abundant in the overlying Mingan Formation, with 29 genera ( Amphilichas, Bathyurus, Calyptaulax, Ceraurinella, Cybeloides, Dolichoharpes, Encrinuroides, Eobronteus, Eorobergia, Failleana, Glaphurina, Glaphurus, Hibbertia, Hyboaspis, Illaenus, Isotelus, Kawina, Nieskowskia, Phorocephala, Pandaspinapyga, Pliomerops, Remopleurides, Sphaerexochus [including S. valcourensis n. sp.], Sphaerocoryphe, Stenopareia, Thaleops, Thulincola, Uromystrum , and Vogdesia ). Lectotypes are selected for Mingan species of Illaenus, Peltabellia, Petigurus, Sphaerexochus, Stenopareia , and Thaleops. A number of genera form biofacies which can be related to lithofacies. Taken together with Chazy Group and Northwest Territories trilobite faunas, Mingan trilobites provide critical information on late Whiterockian trilobite distributions in Laurentia in far more detail than seen in the stratotype area of Nevada. Article in Journal/Newspaper Northwest Territories Cambridge University Press Journal of Paleontology 85 3 406 441 |
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Cambridge University Press |
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English |
topic |
Paleontology |
spellingShingle |
Paleontology Shaw, Frederick C. Bolton, Thomas E. Ordovician trilobites from the Romaine and Mingan formations (Ibexian-late Whiterockian), Mingan Islands, Quebec |
topic_facet |
Paleontology |
description |
The Romaine Formation of the Mingan Islands, Québec, contains a limited trilobite fauna of five genera ( Bolbocephalus, Peltabellia, Petigurus, Strigigenalis, Strotactinus ) with Lower Ordovician Ibexian (Floian) affinity, succeeded by two genera ( Acidiphorus, Pseudomera ) of early Middle Ordovician Whiterockian (Dapingian) affinity. Trilobites of later Whiterockian (Darriwillian) affinity are more abundant in the overlying Mingan Formation, with 29 genera ( Amphilichas, Bathyurus, Calyptaulax, Ceraurinella, Cybeloides, Dolichoharpes, Encrinuroides, Eobronteus, Eorobergia, Failleana, Glaphurina, Glaphurus, Hibbertia, Hyboaspis, Illaenus, Isotelus, Kawina, Nieskowskia, Phorocephala, Pandaspinapyga, Pliomerops, Remopleurides, Sphaerexochus [including S. valcourensis n. sp.], Sphaerocoryphe, Stenopareia, Thaleops, Thulincola, Uromystrum , and Vogdesia ). Lectotypes are selected for Mingan species of Illaenus, Peltabellia, Petigurus, Sphaerexochus, Stenopareia , and Thaleops. A number of genera form biofacies which can be related to lithofacies. Taken together with Chazy Group and Northwest Territories trilobite faunas, Mingan trilobites provide critical information on late Whiterockian trilobite distributions in Laurentia in far more detail than seen in the stratotype area of Nevada. |
format |
Article in Journal/Newspaper |
author |
Shaw, Frederick C. Bolton, Thomas E. |
author_facet |
Shaw, Frederick C. Bolton, Thomas E. |
author_sort |
Shaw, Frederick C. |
title |
Ordovician trilobites from the Romaine and Mingan formations (Ibexian-late Whiterockian), Mingan Islands, Quebec |
title_short |
Ordovician trilobites from the Romaine and Mingan formations (Ibexian-late Whiterockian), Mingan Islands, Quebec |
title_full |
Ordovician trilobites from the Romaine and Mingan formations (Ibexian-late Whiterockian), Mingan Islands, Quebec |
title_fullStr |
Ordovician trilobites from the Romaine and Mingan formations (Ibexian-late Whiterockian), Mingan Islands, Quebec |
title_full_unstemmed |
Ordovician trilobites from the Romaine and Mingan formations (Ibexian-late Whiterockian), Mingan Islands, Quebec |
title_sort |
ordovician trilobites from the romaine and mingan formations (ibexian-late whiterockian), mingan islands, quebec |
publisher |
Cambridge University Press (CUP) |
publishDate |
2011 |
url |
http://dx.doi.org/10.1666/10-062.1 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022336000047557 |
genre |
Northwest Territories |
genre_facet |
Northwest Territories |
op_source |
Journal of Paleontology volume 85, issue 3, page 406-441 ISSN 0022-3360 1937-2337 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1666/10-062.1 |
container_title |
Journal of Paleontology |
container_volume |
85 |
container_issue |
3 |
container_start_page |
406 |
op_container_end_page |
441 |
_version_ |
1797589890640117760 |