relationship loss: part_of caudal fin skeleton (VSAO:0000167)[TAO]

Grouping with AAO dubious

In zebrafish, it is composed of preural vertebra 1 and ural centra 1 and 2. The number of ural centra that become fused with preural centrum 1 varies among teleost subgroups. Because of varying developmental origins the urostyle may not be homologous across species.[TAO]

Anatomical cluster that is the result of fusion of preural centrum 1 with one or more adjacent ural centra.[TAO], Rodlike caudal bony structure unique to anurans that lies within a compartment formed by the elongated, anteriorly oriented pelvic girdle. The urostyle is formed by the fusion of the coccyx and the hypochord.[AAO]

uberon

ultimate vertebra, last vertebra, compound caudal centrum, compound terminal vertebra, compound terminal centrum, terminal centrum, compound centrum

UBERON:0003106

In zebrafish, it is composed of preural vertebra 1 and ural centra 1 and 2. The number of ural centra that become fused with preural centrum 1 varies among teleost subgroups. Because of varying developmental origins the urostyle may not be homologous across species.

• urostyle cotyle
• urostyle ridge
• rudimentary neural arch