Middle Ordovician (middle Darriwilian) Archaeospicularia and Entactinaria (radiolarians) from the Table Cove Formation, Piccadilly Quarry, Newfoundland, Canada
New, distinctive, well-preserved and previously undescribed constituents of a Middle Ordovician (middle Darriwilian, Dw2) radiolarian assemblage from the Table Cove Formation in Newfoundland are described. Three-dimensional X-ray micro-computed tomography (µ-CT) facilitates detailed examination of k...
Published in: | Journal of Paleontology |
---|---|
Main Authors: | , |
Format: | Text |
Language: | English |
Published: |
The Paleontological Society
2021
|
Subjects: | |
Online Access: | https://doi.org/10.1017/jpa.2021.18 |
id |
ftbioone:10.1017/jpa.2021.18 |
---|---|
record_format |
openpolar |
spelling |
ftbioone:10.1017/jpa.2021.18 2024-06-02T08:10:40+00:00 Middle Ordovician (middle Darriwilian) Archaeospicularia and Entactinaria (radiolarians) from the Table Cove Formation, Piccadilly Quarry, Newfoundland, Canada Sarah Kachovich Jonathan C. Aitchison Sarah Kachovich Jonathan C. Aitchison world 2021-08-16 text/HTML https://doi.org/10.1017/jpa.2021.18 en eng The Paleontological Society doi:10.1017/jpa.2021.18 All rights reserved. https://doi.org/10.1017/jpa.2021.18 Text 2021 ftbioone https://doi.org/10.1017/jpa.2021.18 2024-05-07T00:48:07Z New, distinctive, well-preserved and previously undescribed constituents of a Middle Ordovician (middle Darriwilian, Dw2) radiolarian assemblage from the Table Cove Formation in Newfoundland are described. Three-dimensional X-ray micro-computed tomography (µ-CT) facilitates detailed examination of key specimens revealing hitherto unknown details of the internal morphologies of key lower Paleozoic taxonomic groups, among which a lack of knowledge has previously impeded resolution of higher taxonomic rankings. Twenty-seven archaeospiculid and entactinarian taxa are described and illustrated including six new species: Westernbrookia polygonata n. sp., Neopalaeospiculum piccadilliensis n. sp., Ramuspiculum laxum n. sp. Spongentactinia nazarovi n. sp., Aspiculum irregulare n. sp., and Nyfrieslandia ramosissima n. sp. The investigation extends the known ranges of the species: Pararcheoentactinia reedae Won and Iams, 2002; Sphaeroentactinia robusta Won and Iams, 2015; Varispiculum ectospiculatum Won and Iams, 2015; and Svalbardospiculum multifurcatum (Won, Iams, and Reed, 2005), together with the genus Echidnina to the mid-Darriwilian. Text Newfoundland BioOne Online Journals Canada Table Cove ENVELOPE(-57.532,-57.532,50.350,50.350) Journal of Paleontology 95 5 913 943 |
institution |
Open Polar |
collection |
BioOne Online Journals |
op_collection_id |
ftbioone |
language |
English |
description |
New, distinctive, well-preserved and previously undescribed constituents of a Middle Ordovician (middle Darriwilian, Dw2) radiolarian assemblage from the Table Cove Formation in Newfoundland are described. Three-dimensional X-ray micro-computed tomography (µ-CT) facilitates detailed examination of key specimens revealing hitherto unknown details of the internal morphologies of key lower Paleozoic taxonomic groups, among which a lack of knowledge has previously impeded resolution of higher taxonomic rankings. Twenty-seven archaeospiculid and entactinarian taxa are described and illustrated including six new species: Westernbrookia polygonata n. sp., Neopalaeospiculum piccadilliensis n. sp., Ramuspiculum laxum n. sp. Spongentactinia nazarovi n. sp., Aspiculum irregulare n. sp., and Nyfrieslandia ramosissima n. sp. The investigation extends the known ranges of the species: Pararcheoentactinia reedae Won and Iams, 2002; Sphaeroentactinia robusta Won and Iams, 2015; Varispiculum ectospiculatum Won and Iams, 2015; and Svalbardospiculum multifurcatum (Won, Iams, and Reed, 2005), together with the genus Echidnina to the mid-Darriwilian. |
author2 |
Sarah Kachovich Jonathan C. Aitchison |
format |
Text |
author |
Sarah Kachovich Jonathan C. Aitchison |
spellingShingle |
Sarah Kachovich Jonathan C. Aitchison Middle Ordovician (middle Darriwilian) Archaeospicularia and Entactinaria (radiolarians) from the Table Cove Formation, Piccadilly Quarry, Newfoundland, Canada |
author_facet |
Sarah Kachovich Jonathan C. Aitchison |
author_sort |
Sarah Kachovich |
title |
Middle Ordovician (middle Darriwilian) Archaeospicularia and Entactinaria (radiolarians) from the Table Cove Formation, Piccadilly Quarry, Newfoundland, Canada |
title_short |
Middle Ordovician (middle Darriwilian) Archaeospicularia and Entactinaria (radiolarians) from the Table Cove Formation, Piccadilly Quarry, Newfoundland, Canada |
title_full |
Middle Ordovician (middle Darriwilian) Archaeospicularia and Entactinaria (radiolarians) from the Table Cove Formation, Piccadilly Quarry, Newfoundland, Canada |
title_fullStr |
Middle Ordovician (middle Darriwilian) Archaeospicularia and Entactinaria (radiolarians) from the Table Cove Formation, Piccadilly Quarry, Newfoundland, Canada |
title_full_unstemmed |
Middle Ordovician (middle Darriwilian) Archaeospicularia and Entactinaria (radiolarians) from the Table Cove Formation, Piccadilly Quarry, Newfoundland, Canada |
title_sort |
middle ordovician (middle darriwilian) archaeospicularia and entactinaria (radiolarians) from the table cove formation, piccadilly quarry, newfoundland, canada |
publisher |
The Paleontological Society |
publishDate |
2021 |
url |
https://doi.org/10.1017/jpa.2021.18 |
op_coverage |
world |
long_lat |
ENVELOPE(-57.532,-57.532,50.350,50.350) |
geographic |
Canada Table Cove |
geographic_facet |
Canada Table Cove |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
https://doi.org/10.1017/jpa.2021.18 |
op_relation |
doi:10.1017/jpa.2021.18 |
op_rights |
All rights reserved. |
op_doi |
https://doi.org/10.1017/jpa.2021.18 |
container_title |
Journal of Paleontology |
container_volume |
95 |
container_issue |
5 |
container_start_page |
913 |
op_container_end_page |
943 |
_version_ |
1800756575027068928 |