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The cleithrum (pl.: cleithra) is a paired membrane bone which first appears as part of the skeleton in primitive bony fish, where it runs vertically along the scapula. Its name is derived from Greek κλειθρον = "key (lock)", by analogy with "clavicle" from Latin clavicula = "little key".
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Explore the main themes, entities and connections around Cleithrum. Start with the topic map, then use the sections below for research and deeper semantic analysis.
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High-confidence facts extracted from structured source data. Use them as anchors for further research.
Browse the full topic structure. Each item opens a new analysis centered on that subject.
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See the strongest relationship patterns around the current topic before diving into the raw triples.
Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.
bone fishes clavicle cleithra fish age scapula gills tetrapods reptiles amniotes turtle carapace pl paired membrane first appears part skeleton
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Cleithrum | is a | large bone that extends upwards from the base of the pectoral fin and anchors to the cranium above the gills | 0.90 | text |
These clusters group vocabulary that occurs around closely connected concepts in the source material.
Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.