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Re: "Cope's Rule" Put to the Test

To: dinosaur@usc.edu
Subject: Re: "Cope's Rule" Put to the Test
From: Ronald Orenstein <ornstn@inforamp.net>
Date: Mon, 27 Jan 1997 14:12:10 -0500
Reply-to: ornstn@inforamp.net
Sender: owner-dinosaur@usc.edu

At 10:36 PM 1/26/97 -0500, George Olshevsky writes:
Name a tetrapod family or other clade most of whose included
>genera and species are of a >significantly< smaller adult size (factor of two
>or more) than its earliest-known member or hypothesized common ancestor. For
>every one you name of the latter, I'll name three that show the opposite
>trend.

Dendrobatid frogs
Pygmy chamaeleons (I think)
hummingbirds
Passeriformes
hyraxes
dwarf lemurs

--
Ronald I. Orenstein                           Phone: (905) 820-7886
International Wildlife Coalition              Fax/Modem: (905) 569-0116
1825 Shady Creek Court                 
Mississauga, Ontario, Canada L5L 3W2          Internet: ornstn@inforamp.net

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