Branneroceras PLUMMER et SCOTT 1937
Bibliographic record
Abstract
Genus Branneroceras PLUMMER et SCOTT, 1937 T y p e s p e c i e s. Gastrioceras branneri SMITH, 1896; by original designation. D i a g n o s i s. Genus of the family Schistoceratidae with subdiscoidal, evolute conch with moderate to wide umbilicus. Ornamented with prominent ribs on or adjacent to the umbilical shoulder. In widely umbilicate forms the ribs are long and more strongly developed than in the narrowly umbilicate forms; these ribs decrease in size and robustness until they become more like nodes. Ventral region ornamented by prominent sinuous transverse lirae with wider interspaces, forming rounded prominent ventral and lateral sinuses and corresponding salients between, crossed by finer longitudinal lirae, giving a cancellate appearance and commonly beaded where two sets of lirae cross. Suture line with narrow, inflated and attenuate ventral prongs that are separated from each other by a relatively broad secondary ventral saddle; the ventral saddle is more than half the height of the first lateral saddle. The first lateral saddle is broad and evenly rounded and the first lateral lobe is comparatively narrow, asymmetric and attenuate (after Gordon 1965, McCaleb 1968, Nassichuk 1975). S p e c i e s i n c l u d e d. Br. branneri (SMITH, 1896), Texas (USA); Br. hillsi NASSICHUK, 1975, Canadian Arctic Archipelago (Canada); Br. nicholasi NASSICHUK, 1975, Canadian Arctic Archipelago (Canada); Br. perornatum (YIN, 1935), Guangxi (China); Br. reticulatum (YIN, 1935), Guangxi; Br. termierorum (KULLMANN in STEVANOVICH et KULLMANN, 1962), Kenadza Region (Algeria); Br. triangularum SHENG, 1987, Gansu (China); Br. yohi (YIN, 1935), Guangxi (China). R e m a r k s. Branneroceras differs from Inzeroceras RUZHENCEV, 1974 by the more pronounced relief on the umbilical nodes, narrower ventral lobe and low median saddle; in addition, the umbilical lobe of Inzeroceras is displaced to the lateral face. Branneroceras is distinguished from Retites in long and narrow (longer than half the height of the first lateral saddle) ventral prongs. Branneroceras differs from Diadoloceras by the lack of triangular coiling of early whorls. S t r a t i g r a p h i c r a n g e. Late Bashkirian (Gastrioceras-Branneroceras Genozone).
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.012 | 0.003 |
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".