Sheinwoodian (uppermost Lower Silurian) Radiolaria from the Cape Phillips Formation, Nunavut, Canada
Bibliographic record
Abstract
Research Article| January 01, 2006 Sheinwoodian (uppermost Lower Silurian) Radiolaria from the Cape Phillips Formation, Nunavut, Canada M. K. Jones; M. K. Jones Department of Geological Sciences and Engineering, University of Nevada Reno, MS 172, Reno, Nevada, 89557–0138, USA, email: noblepj@unr.edu Search for other works by this author on: GSW Google Scholar P. J. Noble P. J. Noble Department of Geological Sciences and Engineering, University of Nevada Reno, MS 172, Reno, Nevada, 89557–0138, USA, email: noblepj@unr.edu Search for other works by this author on: GSW Google Scholar Author and Article Information M. K. Jones Department of Geological Sciences and Engineering, University of Nevada Reno, MS 172, Reno, Nevada, 89557–0138, USA, email: noblepj@unr.edu P. J. Noble Department of Geological Sciences and Engineering, University of Nevada Reno, MS 172, Reno, Nevada, 89557–0138, USA, email: noblepj@unr.edu Publisher: Micropaleontology Press Received: 23 Dec 2005 Accepted: 12 Aug 2006 First Online: 03 Oct 2017 Online ISSN: 0026-2803 Print ISSN: 1937-2795 © 2006 The Micropaleontology Project, Inc. Micropaleontology (2006) 52 (4): 289–315. https://doi.org/10.2113/gsmicropal.52.4.289 Article history Received: 23 Dec 2005 Accepted: 12 Aug 2006 First Online: 03 Oct 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation M. K. Jones, P. J. Noble; Sheinwoodian (uppermost Lower Silurian) Radiolaria from the Cape Phillips Formation, Nunavut, Canada. Micropaleontology 2006;; 52 (4): 289–315. doi: https://doi.org/10.2113/gsmicropal.52.4.289 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyMicropaleontology Search Advanced Search Abstract Radiolarians from the C. perneri-M. opimus graptolite Zone (Sheinwoodian; Wenlock) are described from a section in the Cape Phillips Formation, Nunavut, Canada, with a focus on the spherical radiolarian component (Archaeospicularia, Entactinaria, and Spumellaria). Three new genera, Involutentactinia, Perforentactinia, and Franklinia are described and the genera Labyrinthospahera, Gyrosphaera, and Haplotaeniatum are emended. Ten new species are described: Involutentactinia eccentra n. sp., containing two varieties; Involutentactinia eccentra n. sp. sensu strictu, and I. eccentra cupressa n. var.; Magnentactinia ostentata n. sp., Perforentactinia excepta n. sp., Plussatispila aethra n. sp., Franklinia tricae n. sp., F. dipulvisphaera, n. sp., Haplotaeniatum vertigospongum, n. sp., Gyrosphaera cavea n. sp., Labyrinthosphaera lancia, n. sp., and Labyrinthosphaera ? lenzi n. sp. Haplotaenitaumiids and entactiniids are dominant and respectively, comprise as much as 35% and 20% percent of the fauna in some samples. Secuicollactines represent a small but persistent component. Inaniguttids, formerly thought to be a dominant portion of upper Sheinwoodian faunas, are represented by only one inaniguttid species, P. aethra, which makes up between 0.5 to 18% of the fauna. This first detailed glimpse at the upper Shein-woodian revises the ranges of two biostratigraphically important taxa: the first appearance of Inanihella tarangulica group taxa occurs above the C. perneri-M. opimus Zone and the last appearance of Haplotaeniatum is within the C. perneri-M. opimusZone. Revisions to the existing radiolarian biozonation of Noble and Aitchison are proposed; the Long-spined inaniguttid 2 zone now extends through the C. perneri –M. opimus Zone encompassing this fauna, and the base of the Long-spined inaniguttid 3 Zone is redefined and moved to the base of the Homerian. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.002 | 0.004 |
| Science and technology studies | 0.004 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.007 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".