Re: di-NO!-tyrannus

["T. Michael Keesey" <mightyodinn@yahoo.com>]

--- Aegyptiacus@aol.com wrote:
> Hello Mike
> you wrote :
> 
> > Tyrannosaurinae
> > |--Indosuchus raptorius
> > `-+--Alioramus remotus
> >   `--+ -Albertosaurus? ("Nanotyrannus") lancensis
> >      | -+--Tyrannosaurus (Daspletosaurus) torosus
> >      |  `--+--Tyrannosaurus (Tyrannosaurus) bataar (=efremovi, novojilovi,
Gorgosaurus lancinator)
> >      |     `--Tyrannosaurus (Tyrannosaurus) rex (=Dynamosaurus imperiosus)
> >      `--+?-Albertosaurus? (Alectrosaurus) olseni
> >         `--+  Albertosaurus (Albertosaurus) sarcophagus (=Laelaps
incrassatus)
> >            `--Albertosaurus (Albertosaurus) libratus (=Albertosaurus
sternbergi)
> >               `?-Albertosaurus (Albertosaurus) arctunguis
> >                  `?-Albertosaurus (Albertosaurus) megagracilis
> > 
> 
> I quite understand the form Tyrannosaurus (Daspletosaurus) but I do not when 
> it's the same taxon name. What does, eg, Tyrannosaurus (Tyrannosaurus) mean?
> Thanks in advance for you help

The name in parentheses is the subgenus. The subgenus of a type species is
always homonymous with the genus.

=====
=====> T. Michael Keesey <keesey@bigfoot.com>
=====> The Dinosauricon <http://dinosauricon.com>
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