| Term Name: | hypural |
|---|---|
| Synonyms: | hyp, hypuralia, hypurals |
| Definition: | Expanded and laterally flattened hemal arches and spines. They support the lepidotrichia of the caudal fin. The hypurals form ventral to the posterior tip of the dorsally-flexed notochord. In zebrafish condensation of the hypurals begins at approximately 6 dpf (4.1 mm NL, notochord length). |
| Appears at: | Larval:Day 4 (96.0h-120.0h) |
| Evident until: | Adult (90d-730d, breeding adult) |
| Ontology: | Anatomy Ontology [ZFA:0000364] |
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