Taxonomic hierarchy in SDD

Steve at Steve at
Tue Nov 27 14:07:35 CET 2001

If a dataset includes the descriptions of two families and 4 genera but
doesn't tell you which genera belong to which family you will be forced to
get this information from someplace else (e.g. ITIS).  If the dataset is
based on a different arrangement from ITIS you don't know this because the
dataset didn't tell you because it's not part of the standard. In this case
the data won't make sense because the family descriptions need to be a
superset of the genera which belong to them.  I think this is a pretty basic
problem if we want to support hierarchical data (taxa at different taxonomic

Again, if you don't want to follow the author of the dataset then you are
free to ignore the suggested classification - but I would strongly suggest
that you better know what the author is thinking and ignore all of her data
if you don't agree with it, not accept the descriptions while rejecting the


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