Obsolete 'common crus', merge into 'common crus of semicircular duct'

[gouttegd]

‘common crus’ (no definition) was created as a “generalised” version of the eponym ZFA term, defined as the “duct that forms when the nonampullary ends of the posterior and anterior semicircular canals merge […]”. It seems redundant with ‘common crus of semicircular duct’, which Uberon defines as “a nonampullary end of the superior or posterior semicircular ducts”. That term has “common crus” as a broad synonym, but there doesn’t seem to be any other “common crus” than those of the semicircular ducts, further suggesting that the two terms do in fact refer to the same thing.

It is therefore suggested to obsolete ‘common crus’ and merge it into ‘common crus of semicircular duct’.