Re: "Cetiformes" and Dinosauriformes

[NJPharris@aol.com]

In a message dated 9/24/01 12:50:49 AM Eastern Daylight Time, 
kinman@hotmail.com writes:

>      When I told people I was going to take scorpions out of Class 
>  Arachnidea, some people thought my new Class Scorpionea was a little 
wacky.  
> 
>  But several years later fossil evidence showed that scorpions and 
>  eurypterids do share a key synapomorphy to the exclusion of other 
arachnids 
>  (my Class Arachnidea).

Um, well, that shows that scorpions and eurypterids should be classed 
together, but why should they be a separate "class", rather than a 
subdivision of Arachnida?

--Nick P.