[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Re: Coelurosauria Cladogram is here!
On Tue, 28 Aug 2001, Mickey Mortimer wrote:
> Congratulations Grant! I appreciate you using my analysis as the
> basis for the cladogram, and your use of the following sentence- "The
> phylogeny is tentative, however, and may change." In the present
> case, this is especially applicable. I'm in the process of making
> sure my codings are accurate, so I don't really support any phylogeny
> at the moment, but.... Removing the flight-related characters from my
> revision-in-prep analysis creates a different phylogeny than your
> website-
The spacing was messed up in the original post (does your e-mail program
use a monospace font, Mickey?)
> +--Tyrannosauroidea
> |--lots of basal coelurosaurs (compsognathids, Coelurus, Ornitholestes,
> Scipionyx, etc.)
> `--+--+--+--+--Alvarezsauridae
> | | | `--Avimimus
> | | `--Ornithomimosauria
> | `--+--+--+--+--Oviraptorosauria sensu stricto
> | | | | `--Microvenator
> | | | `--Caudipteryx? sp.
> | | `--Caudipteryx zoui
> | `--+--Segnosauria
> | `--Protarchaeopteryx
> `--+--+--+--+--+--+--Yandangornis+Pygostylia
> | | | | | `--+--Unenlagia
> | | | | | `--Rahonavis
> | | | | `--Archaeopteryx
> | | | `--Microraptor
> | | `--Troodontidae
> | `--Deinonychosauria (incl. Sinornithosaurus, Bambiraptor,
> Achillobator)
> `--Bagaraatan
(BTW, if you're using this system for text-based cladograms, placing more
derived taxa toward the bottom makes it more legible, IMHO, avoiding the
"Menorah effect". e.g, this:
--+--A
`--+--+--B
| `--C
`--+--D
`--+--E
`--+--F
`--+--G
`--H
...is easier to read than this:
--+--+--+--+--+--+--H
| | | | | `--G
| | | | `--F
| | | `--E
| | `--D
| `--+--C
| `--B
`--A
At least, I think so. Anyone disagree?)
> By the way, you misspelled Sauriurae.
It has been spelled both ways -- not sure which has priority. But there
are several possibly more appropriate choices for the name of this clade,
such as Archaeornithes or Archaeopterygiformes.
_____________________________________________________________________________
T. MICHAEL KEESEY
Home Page <http://dinosauricon.com/keesey>
The Dinosauricon <http://dinosauricon.com>
personal <keesey@bigfoot.com> --> <tmk@dinosauricon.com>
Dinosauricon-related <dinosaur@dinosauricon.com>
AOL Instant Messenger <Ric Blayze>
ICQ <77314901>
Yahoo! Messenger <Mighty Odinn>