Hi Dr A,
Here's another article that may help a little;
Ligers and wholphins? What next? - creation.com
Basically it says that defining a kind as being a species is too narrow a definition, and that in some situations a kind may go up the taxonomic clasification as far as order. Because of differing amounts of speciation between the original created kinds, you cannot state that a 'kind' is equivalent to say 'family' across the board. One kind may extend back to family, another may go to order, and still another may be equvalent to genus.
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