The Ordovician trilobite Oenonella and the new family Oenonellidae, with new species from western Newfoundland, Canada
Abstract The tiny Ordovician trilobite Oenonella Fortey, 1980 has previously been known only from cranidia and pygidia of its Middle Ordovician type species. Two new species, Oenonella wasisnamei and O. otherfellersorum , from the Darriwilian Table Cove Formation, western Newfoundland, Canada, are k...
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Online Access: | http://dx.doi.org/10.1017/jpa.2022.22 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022336022000221 |
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crcambridgeupr:10.1017/jpa.2022.22 2024-03-03T08:46:40+00:00 The Ordovician trilobite Oenonella and the new family Oenonellidae, with new species from western Newfoundland, Canada Adrain, Jonathan M. Fortey, Richard A. 2022 http://dx.doi.org/10.1017/jpa.2022.22 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022336022000221 en eng Cambridge University Press (CUP) https://creativecommons.org/licenses/by/4.0/ Journal of Paleontology volume 96, issue 5, page 1061-1077 ISSN 0022-3360 1937-2337 Paleontology journal-article 2022 crcambridgeupr https://doi.org/10.1017/jpa.2022.22 2024-02-08T08:25:38Z Abstract The tiny Ordovician trilobite Oenonella Fortey, 1980 has previously been known only from cranidia and pygidia of its Middle Ordovician type species. Two new species, Oenonella wasisnamei and O. otherfellersorum , from the Darriwilian Table Cove Formation, western Newfoundland, Canada, are known from silicified material that provides new information on the librigena, ventral morphology, and intraspecific variation within the group. The stratigraphic range of the genus is extended downward by an occurrence in the Floian of the Shallow Bay Formation, western Newfoundland. New knowledge of Oenonella confirms its likely phylogenetic relationship with Proscharyia Peng, 1990, known from the Tremadocian of South China. In addition, the overlooked Amechilus Ross, 1951, seems to belong to the same group. Both Oenonella and Proscharyia have in the past been assigned to the aulacopleuride family Scharyiidae Osmólska, 1957. New silicified material effectively rules out this possibility. The broader affinity of the group remains obscure, but together the three genera are assigned to the new family Oenonellidae. UUID: http://zoobank.org/ee3ce7ed-3d9b-4730-a5cb-cf680df418ec Article in Journal/Newspaper Newfoundland Cambridge University Press Canada Shallow Bay ENVELOPE(67.467,67.467,-67.817,-67.817) Table Cove ENVELOPE(-57.532,-57.532,50.350,50.350) Journal of Paleontology 1 17 |
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Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Paleontology |
spellingShingle |
Paleontology Adrain, Jonathan M. Fortey, Richard A. The Ordovician trilobite Oenonella and the new family Oenonellidae, with new species from western Newfoundland, Canada |
topic_facet |
Paleontology |
description |
Abstract The tiny Ordovician trilobite Oenonella Fortey, 1980 has previously been known only from cranidia and pygidia of its Middle Ordovician type species. Two new species, Oenonella wasisnamei and O. otherfellersorum , from the Darriwilian Table Cove Formation, western Newfoundland, Canada, are known from silicified material that provides new information on the librigena, ventral morphology, and intraspecific variation within the group. The stratigraphic range of the genus is extended downward by an occurrence in the Floian of the Shallow Bay Formation, western Newfoundland. New knowledge of Oenonella confirms its likely phylogenetic relationship with Proscharyia Peng, 1990, known from the Tremadocian of South China. In addition, the overlooked Amechilus Ross, 1951, seems to belong to the same group. Both Oenonella and Proscharyia have in the past been assigned to the aulacopleuride family Scharyiidae Osmólska, 1957. New silicified material effectively rules out this possibility. The broader affinity of the group remains obscure, but together the three genera are assigned to the new family Oenonellidae. UUID: http://zoobank.org/ee3ce7ed-3d9b-4730-a5cb-cf680df418ec |
format |
Article in Journal/Newspaper |
author |
Adrain, Jonathan M. Fortey, Richard A. |
author_facet |
Adrain, Jonathan M. Fortey, Richard A. |
author_sort |
Adrain, Jonathan M. |
title |
The Ordovician trilobite Oenonella and the new family Oenonellidae, with new species from western Newfoundland, Canada |
title_short |
The Ordovician trilobite Oenonella and the new family Oenonellidae, with new species from western Newfoundland, Canada |
title_full |
The Ordovician trilobite Oenonella and the new family Oenonellidae, with new species from western Newfoundland, Canada |
title_fullStr |
The Ordovician trilobite Oenonella and the new family Oenonellidae, with new species from western Newfoundland, Canada |
title_full_unstemmed |
The Ordovician trilobite Oenonella and the new family Oenonellidae, with new species from western Newfoundland, Canada |
title_sort |
ordovician trilobite oenonella and the new family oenonellidae, with new species from western newfoundland, canada |
publisher |
Cambridge University Press (CUP) |
publishDate |
2022 |
url |
http://dx.doi.org/10.1017/jpa.2022.22 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022336022000221 |
long_lat |
ENVELOPE(67.467,67.467,-67.817,-67.817) ENVELOPE(-57.532,-57.532,50.350,50.350) |
geographic |
Canada Shallow Bay Table Cove |
geographic_facet |
Canada Shallow Bay Table Cove |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
Journal of Paleontology volume 96, issue 5, page 1061-1077 ISSN 0022-3360 1937-2337 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1017/jpa.2022.22 |
container_title |
Journal of Paleontology |
container_start_page |
1 |
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17 |
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1792502724558848000 |