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Re: Non-serpentine lacertids (was RE:WHAT'S GOING ON?)



In a message dated 7/3/00 3:00:31 AM, tmk@dinosauricon.com writes:

<< > If you're going to stick to the old class system [and why not? it
> works!!!!!!],

It works somewhat for extant forms (although it's still unsatisfactory in
many ways), but many fossil taxa tend to get less classificatory space
(no ranks for Dinosauria, Neotheropoda, Tetanurae, Neotetanurae,
Maniraptoriformes, Maniraptora, Paraves or Eumaniraptora), or more than
they need (_Archaeopteryx_ constitutes a subclass, an infraclass, a
superorder, an order, a suborder, an infraorder, a superfamily, a
family, a subfamily, a tribe ...). >>

It works perfectly for exent forms. That's why it lasted so long as a system. 
The simple question is, is if by some chance someone found a real "lost 
world" would a Maniraptor be considered a bird or a reptile [in the 
traditional sense] by the people who found it running after them. 

The fact is that except for "glass snakes," the tuatara and the three 
monotremes, all the distaff forms of vertabrate life fit perfectly within the 
"linnean" system. This may be because of the fact that they all went extinct 
at the KT boundry except multis and champtosaurs, which didn't make it past 
the eocene. 

I'm pretty sure that a field guide to cretecous west-america would list the 
types of animals [class-wise] quite differently.

eric l.