OBO ID: ZFA:0000263
Term Name: precaudal vertebra Search Ontology:
  • abdominal vertebra
  • precaudal vertebrae
  • trunk vertebra
Definition: Post-cranial vertebrae lacking hemal spines (Weitzman, 1962), refers generally to the anterior vertebral region bounding the abdominal cavity. Alternate but not quite synonymous terms are abdominal or trunk vertebrae, which bear parapophyses and ribs. In many actinopterygians dorsal to the posterior abdominal cavity there are transitional vertebrae lacking ribs but also without hemal spines or sometimes even enclosed hemal arches. The primary definition would identify these vertebrae as precaudal. (1)
Appears at: Unknown
Evident until: Adult (90d-730d, breeding adult)
  • TAO:0000263
Ontology: Anatomy Ontology
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