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Re: More concerning the Triceratops/Torosaurus deal
I mean, ok I'm just a layman, and ok, am therefore no specialist,
but, concerning this topic, I want to know: how many "species"(taxa?) are
expected to be found within a "family"(taxon?) pertaining to the same clade?
Why is it that _Torosaurus_ has to be _Triceratops_ adlut stage? Ontogeny is
a nice thing. But what if this was based on incomplete fossil preservation,
like _Toro_ would be a parent clade (?above genus level) of _Triceratops_ ,
and only subadult stages of the latter had been found? Given the quite fast
evolution of ceratopids during the Cretaceous, is it impossible to think
that this "_Toro_ adult" stage of _Triceratops_ is actually a subadult stage
of an adult _Triceratops_ yet to be found? And, by the same way, that young
or subadlut _Toro_ have not yet been found?
Don't know if I've made my ideas clear
Cheers anyway, as usual!
(you might sense that I'm very fond of _Triceratops_...)
----- Original Message -----
From: "Michael Erickson" <email@example.com>
To: "Dino List" <firstname.lastname@example.org>
Sent: Thursday, October 29, 2009 12:29 AM
Subject: More concerning the Triceratops/Torosaurus deal
Greg Paul's mention of a rumor about a juvie *Torosaurus* made me think of
something else that might have bearing on the *Torosaurus* as adult
*Triceratops* issue - that bigbutt *Triceratops* skull at the BYU Earth and
Science Museum. I know it hasn't been described (at least, to my knowledge
it hasn't), but according to Luis Rey, Bakker and a couple others who claim
to have seen it, it is at least as large as the largest specimens of
*Torosaurus*. It is apparently very, very massive. Too bad they won't dust
the thing off and publish something on it. But anyway, I wonder - would a
*Triceratops* skull the size of the biggest *Torosaurus* skulls, and showing
no sign of fenestrae opening up, refute the notion that Toro is the adult
stage of Trike?
Just a thought.
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