Micro-CT study of Middle Ordovician Spumellaria (radiolarians) from western Newfoundland, Canada
A new, previously undescribed Middle Ordovician (middle Darriwilian: Dw2) radiolarian assemblage has been recovered from the Table Cove Formation at Piccadilly Quarry, western Newfoundland. Constituents of the fauna described herein are both distinctive and exceptionally well preserved. Three-dimens...
| Published in: | Journal of Paleontology |
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| Main Authors: | , |
| Format: | Text |
| Language: | English |
| Published: |
The Paleontological Society
2020
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| Subjects: | |
| Online Access: | https://doi.org/10.1017/jpa.2019.88 |
| Summary: | A new, previously undescribed Middle Ordovician (middle Darriwilian: Dw2) radiolarian assemblage has been recovered from the Table Cove Formation at Piccadilly Quarry, western Newfoundland. Constituents of the fauna described herein are both distinctive and exceptionally well preserved. Three-dimensional X-ray micro-computed tomography (ยต-CT) is used to make a detailed examination of four key spumellarian specimens. This technology enables visualization of hitherto ambiguous details of the internal morphologies of key lower Paleozoic taxonomic groups, among which a lack of knowledge has impeded resolution of higher taxonomic rankings. |
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