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Re: "Megapnosaurus" says farewell...
In a message dated 2/4/02 5:09:11 PM Pacific Standard Time,
<< There is absolutely nothing to designate whether two animals should be put
in the same genus or two separate genera. I mean, if I wanted to I _could_
place _Syntarsus_ (the beetle!) and a rabbit in the same genus. Who would
stop me? It may seem ridiculous...but there is no convenient definition, a
la species. >>
Well, then your genus, since it would have to be a clade, would also include
all other arthropods, all chordates, and a bunch of other invertebrate phyla.
These would, for convenience, have to be subdivided into subgenera,
subsubgenera, and so forth. So eventually you'd be back where you started,
only at a different taxonomic level.