Message 2003-12-0003: Re: One more Recommendation?

Wed, 03 Dec 2003 22:50:20 +0100

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Date: Wed, 03 Dec 2003 22:50:20 +0100
From: David Marjanovic <>
To: PML <>
Subject: Re: One more Recommendation?

I forgot: The following should be added to the Recommendation (or form one
of its own, whatever):

Names formed by adding a prefix to another name should only be defined if
the latter is already an established name.

So no Eupelycosauria when there is no Pelycosauria, and no Eureptilia when
there is no Reptilia.
(Currently Eureptilia, Reptilia, and Eupelycosauria have phylogenetic
definitions, while Pelycosauria has none.)


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