"Segmentation and Vertebrate Origins" - very interesting stuff Cliff
and from a number of perspectives!
I've only read as far as the end of The Appendicular Skeleton so far -
I
wanted to read it all to gain an overview before making any comments
but I'm out of time for today and I do have a (self-imposed) schedule
to keep to as far as internet time is concerned.
You've brought to my attention some interesting and potentially useful
info and I do hope I'll eventually have some constructive comments to
make - as a single aside, and one you might disagree with, I feel (at
this point in time anyway!) that the evolution of snakes is a 'sideways
step' in a similar manner to that of flatfish. I won't go into it now
(mainly because I don't have all the info to hand - and it would
probably be too much of a digression at this point) but, from the
perspective of an internal evolutionary mechanism, the cytochrome c
info found in Dayhoff's Atlas of Protein Structure and Function is
particularly
relevant. Another way of putting it, is that snakes may be 'an
exception
that proves the rule' and consequently do not initially have to
be 'accounted for' to any great degree.
On a more immediate and practical level I would like to put your site
on my "Reciprocal Links" and "Evolinks" pages. It doesn't matter (from
my point of view) that you haven't got a links page - if you want me to
go ahead just send a couple of lines describing your site and I'll add
it as soon as I can.
As I said in an earlier post, I'm currently bogged down with 'site
maintance' (just a hard slog) which I'm balancing with joining web
rings (new and interesting) and I've had to postpone a number of new
web pages I want to write. On the other hand, I'm going to have a lot
more hours per week so I will get back to you & I'll continue to
read more of your pages in the meantime.
New member; greetings. I'm glad to find the site, as we have common interests. I have an article that I try to
promote, at http://www.zainar.com/segment/tablecon.html
The gist of it is a model that offers a mechanism for the
Cambrian explosion of segmented organisms. It also explains
the basic constraint that non-teleologically guides and limits
subsequent evolution. I'll respond to any feedback.
it has been said that no evolutionist can claim that
the front and rear limbs have evolved from a common source [Denton]
From: "John Latter" <jorolat@...> ... New member; greetings. I'm glad to find the site, as we have common interests. I have an article that I try to ...
"Segmentation and Vertebrate Origins" - very interesting stuff Cliff and from a number of perspectives! I've only read as far as the end of The Appendicular...
From: "John Latter" <jorolat@...> ... It's all about one simple thing: simple multiplication of bodies to form trains of identical organisms living as...
I think I've got the basic idea Cliff, I'm now up to the end of 'Verification' and one statement which (rightly or wrongly) struck a chord is: "Since the...
From: "John Latter" <jorolat@...> ... The Darwinian paradigm of gradually increasing complexity keeps people from giving my model consideration. But it's...
It's 'good fun' to read something original too Cliff! I hadn't considered linking implying support. As far as my website is concerned my initial motivation was...
... I just don't get involved in creationist arguments (I see religion as a function of cultural upbringing). ... I had a problem even before reading your...
... I'm not keen on re-writing either although its really inertia talking - once I get into it then hopefully enthusiasm will buoy me along! Besides, its...
From: "John Latter" <jorolat@...> ... Basically you have the environment effecting changes in the genotype, in a manner more direct & Lamarckian than...
... Well, I don't think there's a need for an 'internal mechanism' as such. The concept was initially developed from 'anomalies' found below the level at which...
... Oops! thought you meant the internet in general & not just Yahoo Groups :) ... I could just quickly skim through it and make a few bland comments. While...
... It's been an interesting read Cliff although the depth of knowledge is way beyond me! I began the second reading making notes but quickly realized that...
From: "John Latter" <jorolat@...> ... Thanks for reading it. The model is basically simple. It's more a matter of having the courage to adopt it than...
... Well I did feel you were using parabiosis as an example of an already known mechanism rather than an actual mechanism - just wanted to show I was paying...
From: "John Latter" <jorolat@...> ... I'm giving a theoretical history of my protovertebrate, to show how simply it can form through understandable ...
... I do feel the following is a big step - is there a "why"?: "The evolution of the vertebrate requires additional steps of parabiotic mutation. The segmented...
From: "John Latter" <jorolat@...> ... You mean, why would I propose such model? Or, why should things have to have happened this way? Because it's the...
... Er, I was trying to see it from the point of view of when it happened rather than from today's perspective - why would 5 come together in the manner you...
... I posted before breakfast Cliff (gotta lot to do today) & had forgotten that the "The evolution of the vertebrate requires additional steps of parabiotic...
From: "John Latter" <jorolat@...> ... No reason, just happenstance; random mutation. No doubt various patterns of aggregation arose--radial, bilateral, ...
... There's no need to consider 'homeostasis' in your model Cliff - I was just reflecting my own way of looking at things. You say in "Ideal Serial Homology": ...
From: "John Latter" <jorolat@...> ... Sure. ... Thanks, various theories have the skull evolving from a set of vertebrae. The last reference interests me...
... /http://www.natur.cuni.cz/zoologie/vertebrata/R.Cerny/Rolf+Lennart+ME.pdf/ ... Bearing in mind I'm commenting from a position of astonishing ignorance: If...
... I see your point. ... I just thought (although it may not be applicable in this instance at all), that when presenting new ideas, people tend to be 'more...
From: "John Latter" <jorolat@...> ... New theories face a lot of prejudice in favor of the model of gradually increasing complexity evolving without...
... The reference to trauma merely indicated the 'route' through which the proposal came into being. With regard to your earlier comments, the basic idea is at...
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