Corynexochine trilobites of the Harkless Formation and Mule Spring Limestone (Cambrian Series 2, Stage 4), Clayton Ridge, Nevada
Abstract Most Cambrian Series 2 faunas of Laurentia are dominated by olenelline trilobites; however, non-olenelline trilobites occur with the olenellines and sometimes dominate the assemblages. Reported here are such non-olenelline trilobites from the Harkless Formation and Mule Spring Limestone at...
Published in: | Journal of Paleontology |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
2021
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1017/jpa.2021.41 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S002233602100041X |
id |
crcambridgeupr:10.1017/jpa.2021.41 |
---|---|
record_format |
openpolar |
spelling |
crcambridgeupr:10.1017/jpa.2021.41 2024-09-15T18:09:52+00:00 Corynexochine trilobites of the Harkless Formation and Mule Spring Limestone (Cambrian Series 2, Stage 4), Clayton Ridge, Nevada Sundberg, Frederick A. Webster, Mark 2021 http://dx.doi.org/10.1017/jpa.2021.41 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S002233602100041X en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Journal of Paleontology volume 95, issue 6, page 1241-1258 ISSN 0022-3360 1937-2337 journal-article 2021 crcambridgeupr https://doi.org/10.1017/jpa.2021.41 2024-07-03T04:03:49Z Abstract Most Cambrian Series 2 faunas of Laurentia are dominated by olenelline trilobites; however, non-olenelline trilobites occur with the olenellines and sometimes dominate the assemblages. Reported here are such non-olenelline trilobites from the Harkless Formation and Mule Spring Limestone at Clayton Ridge, Nevada. At the bottom of the Saline Valley Tongue, Harkless Formation, are two assemblages that are characterized by corynexochines and/or ptychoparioids, with olenellines occurring as only rare components. The corynexochines present in these assemblages include Bonnia cf. B . brennus (Walcott, 1916), Ovatoryctocara cf. O . yaxiensis Yuan et al., 2009, Protoryctocephalus ? aff. P .? arcticus Geyer and Peel, 2011, Ogygopsis sp. indet., and Oryctocephalops frischenfeldi Lermontova, 1940. These assemblages are from the mid-Dyeran Stage, below the lowermost zone in the upper Dyeran ( Arcuolenellus arcuatus Biozone), and can be correlated to Series 2 Stage 4 (Cambrian) assemblages in Greenland, Siberia, and South China based on the corynexochines. Also in the Saline Valley Tongue and the overlying Mule Spring Limestone and lowermost Emigrant Formation are olenelloid-dominated assemblages that contain the corynexochines Bonnia columbensis Resser, 1936, Zacanthopsis aff. Z . levis (Walcott, 1886), and Z . sp. indet. Article in Journal/Newspaper Greenland Siberia Cambridge University Press Journal of Paleontology 1 18 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
Abstract Most Cambrian Series 2 faunas of Laurentia are dominated by olenelline trilobites; however, non-olenelline trilobites occur with the olenellines and sometimes dominate the assemblages. Reported here are such non-olenelline trilobites from the Harkless Formation and Mule Spring Limestone at Clayton Ridge, Nevada. At the bottom of the Saline Valley Tongue, Harkless Formation, are two assemblages that are characterized by corynexochines and/or ptychoparioids, with olenellines occurring as only rare components. The corynexochines present in these assemblages include Bonnia cf. B . brennus (Walcott, 1916), Ovatoryctocara cf. O . yaxiensis Yuan et al., 2009, Protoryctocephalus ? aff. P .? arcticus Geyer and Peel, 2011, Ogygopsis sp. indet., and Oryctocephalops frischenfeldi Lermontova, 1940. These assemblages are from the mid-Dyeran Stage, below the lowermost zone in the upper Dyeran ( Arcuolenellus arcuatus Biozone), and can be correlated to Series 2 Stage 4 (Cambrian) assemblages in Greenland, Siberia, and South China based on the corynexochines. Also in the Saline Valley Tongue and the overlying Mule Spring Limestone and lowermost Emigrant Formation are olenelloid-dominated assemblages that contain the corynexochines Bonnia columbensis Resser, 1936, Zacanthopsis aff. Z . levis (Walcott, 1886), and Z . sp. indet. |
format |
Article in Journal/Newspaper |
author |
Sundberg, Frederick A. Webster, Mark |
spellingShingle |
Sundberg, Frederick A. Webster, Mark Corynexochine trilobites of the Harkless Formation and Mule Spring Limestone (Cambrian Series 2, Stage 4), Clayton Ridge, Nevada |
author_facet |
Sundberg, Frederick A. Webster, Mark |
author_sort |
Sundberg, Frederick A. |
title |
Corynexochine trilobites of the Harkless Formation and Mule Spring Limestone (Cambrian Series 2, Stage 4), Clayton Ridge, Nevada |
title_short |
Corynexochine trilobites of the Harkless Formation and Mule Spring Limestone (Cambrian Series 2, Stage 4), Clayton Ridge, Nevada |
title_full |
Corynexochine trilobites of the Harkless Formation and Mule Spring Limestone (Cambrian Series 2, Stage 4), Clayton Ridge, Nevada |
title_fullStr |
Corynexochine trilobites of the Harkless Formation and Mule Spring Limestone (Cambrian Series 2, Stage 4), Clayton Ridge, Nevada |
title_full_unstemmed |
Corynexochine trilobites of the Harkless Formation and Mule Spring Limestone (Cambrian Series 2, Stage 4), Clayton Ridge, Nevada |
title_sort |
corynexochine trilobites of the harkless formation and mule spring limestone (cambrian series 2, stage 4), clayton ridge, nevada |
publisher |
Cambridge University Press (CUP) |
publishDate |
2021 |
url |
http://dx.doi.org/10.1017/jpa.2021.41 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S002233602100041X |
genre |
Greenland Siberia |
genre_facet |
Greenland Siberia |
op_source |
Journal of Paleontology volume 95, issue 6, page 1241-1258 ISSN 0022-3360 1937-2337 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/jpa.2021.41 |
container_title |
Journal of Paleontology |
container_start_page |
1 |
op_container_end_page |
18 |
_version_ |
1810447458618048512 |