New poraspids (Agnatha, Heterostraci) from the Early Devonian of the western United States
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
ABSTRACT A new species of the cythaspid Poraspis is described from the Emsian (Early Devonian) Lippincott Member of the Lost Burro Formation in Death Valley, California. Poraspis thomasi, sp. nov., extends the geographic range of the genus, which had previously been reported from western Europe, Spitsbergen, the Canadian Arctic Archipelago, and District of Mackenzie. In addition, the temporal range is extended as the previously described species ranged through the Late Silurian into the Pridoli. This species includes articulated specimens showing that the oral area consisted of a single rectangular oral plate, in contrast with the view that in cyathaspids the area consisted of an arrangement of numerous finger-like plates. Also, one ventral shield shows growth lines indicating that growth of the shield occurred in a posterior direction. An additional poraspid, Lechriaspis patula, gen. et sp. nov., is described from a single specimen from the Grassy Flat Member of the Water Canyon Formation, northern Utah, that shows evidence of puncture wounds indicating predation by a eurypterid. These new heterostracans represent the first true cyathaspids to be described from the Devonian of the western United States.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
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 it