Ridley's evolution book and panbiogeography

[Tom DiBenedetto]

John Grehan wrote:

>Peter Hovenkamp wrote
>
>>If you would please please stop using terms like "homology" in a
>>biogeographic context, we might actually begin to understand what you mean...

>The use of homology seems clear enough to me. Perhaps the term has
> not been used in biogeography much, and therefore is
>confusing to biogeographers and systematists?

Yeah,  homology means "the same feature found in different organisms,
as a result of descent from a common ancestor".

>The concept
>of homology is a major issue in biogeography since it refers to the criteria
>by which any one distribution may or may not be said to be homologous
>to another.

Could you please explain what you really mean by this, and how I could
fit that into the concept which I defined above?