Romerograms Re: Greg Paul's new (or newly named) iguanodonts

["Richard W. Travsky" <rtravsky@uwyo.edu>]

On Fri, 7 Dec 2007, David Marjanovic wrote:
> > [...]
> Considering avicephalans "thecodonts" was made possible by the absence of 
> tree-thinking. In precladistic times, all but maybe the real specialists on 
> any group didn't imagine a group as a twig, they imagined it as a blob on a 
> romerogram. Such blobs lack internal structure; the fact that no avicephalan 
> fits into the "thecodont" tree didn't matter because people simply didn't 
> think of it. At best, blobs on a romerogram consist of more blobs with 
> stippled lines between them; adding one more little blob for 
> *Megalancosaurus*, supported on a stippled line that originates from a 
> free-floating question mark, is no big affair (if only you believe that 
> *Megalancosaurus* has The Defining Feature, the antorbital fenestra).
> [...]

Ok, I had to look up romerograms. Found like TWO hits on google.

http://www.prosanta.net/Chakrabartythesis.pdf

Figure I.10

A link on the other reference was of a histogram of evolution

http://www.lessthanevolved.com/histomap_of_evolution.html
"The Histomap of Evolution is a poster from my collection, by John B. 
Sparks, published by Rand McNally & Company in 1932. Measuring 57cm x 1.5 
meters (21.5 x 59 inches), it was a graphical representation of the 
history of the earth, drawn on a logarithmic scale, covering a period of 
10  billion years"

An 8 mb graphic. Absolutely fascinating.

http://www.lessthanevolved.com/histomap.jpg

"Each fundamental Group or phylum is represented by a differently colored 
strip...The horizontal width of any strip at any time suggests in a 
general way the relative importance of that type at that time"