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To: Ichneumon
 
 

Ignorance is curable, but the afflicted has to want to be cured.

 


Mammal-Like Reptiles

As previously stated, a succession of transitional fossils exists that link reptiles (Class Reptilia) and mammals (Class Mammalia). These particular reptiles are classifie as Subclass Synapsida. Presently, this is the best example of th e transformation of one major higher taxon into another. The morphologic changes that took place are well documented by fossils, beginning with animals essentially 100% reptilian and resulting in animals essentially 100% mammalian. Therefore, I have chosen this as the example to summarize in more detail (Table 1, Fig. 1).  

    
Comparisons
 
 
M. Eyes =           ?       
   Nose =           ?    
   Teeth incisors = ?
 
 
 
K. Eyes =           ?       
   Nose =           pointy
   Teeth incisors = smaller fangs 
 
 
 
J. Eyes =           Medium
   Nose =           stubby    
   Teeth incisors = BIGGER fangs 
 
 
 
I. Eyes =           Medium
   Nose =           more pointy
   Teeth incisors = big fangs
 
 
 
H. Eyes =           Bigger
   Nose =           more blunt
   Teeth incisors = Even more 
 
 
 
 
G. Eyes =           real SMALL
   Nose =           Real pointy
   Teeth incisors = More
 
 
 
 
 
F. Eyes =           Smaller
   Nose =           Blunt
   Teeth incisors = Thin, less
 
 
 
 
E. Eyes =           HUGE!
   Nose =           pointy, again
   Teeth incisors = Smaller
 
 
 
 
D. Eyes =           Smaller
   Nose =           Holes bigger
   Teeth incisors = Bigger
 
 
 
 
C. Eyes =           Huge, again!
   Nose =           broader
   Teeth incisors = very small
 
 
 
 
B. Eyes =           less huge
   Nose =           narrower
   Teeth incisors = ??
 
 
 
 
A. Eyes =           big
   Nose =           rounded
   Teeth incisors = small
 

Skulls and jaws of synapsid reptiles and mammals; left column side view of skull; center column top view of skull; right column side view of lower jaw. Hylonomus modified from Carroll (1964, Figs. 2,6; 1968, Figs. 10-2, 10-5; note that Hylonomus is a protorothyrod, not a synapsid). Archaeothyris modified from Reisz (1972, Fig. 2). Haptodus modified from Currie (1977, Figs, 1a, 1b; 1979, Figs. 5a, 5b). Sphenacodo n modified from Romer & Price (1940, Fig. 4f), Allin (1975, p. 3, Fig. 16);note: Dimetrodon substituted for top view; modified from Romer & Price, 1940, pl. 10. Biarmosuchus modified from Ivakhnenko et al. (1997, pl. 65, Figs. 1a, 1B, 2); Alin & Hopson (1992; Fig. 28.4c); Sigogneau & Tchudinov (1972, Figs. 1, 15). Eoarctops modified from Broom (1932, Fig. 35a); Boonstra (1969, Fig. 18). Pristerognathus modified from Broom (1932, Figs 17a, b,c); Boonstra (1963, Fig. 5d). Procynosuchus modified from Allin & Hopson (1992, Fig. 28.4e); Hopson (1987, Fig. 5c); Brink (1963, Fig. 10a); Kemp (1979, Fig. 1); Allin (1975, p. 3, Fig. 14). Thrinaxodon modified from Allin & Hopson (1992, Fig. 28.4f);Parrington (1946, Fig. 1); Allin (1975, p. 3, Fig. 13). Probainognathus modified from Allin & Hopson (1992, Fig. 28.4g); Romer (1970, Fig. 1); Allin (1975, p. 3, Fig. 12). Morga nucodon modified from Kermack, Mussett, & Rigney (1981, Figs. 95, 99a; 1973, Fig. 7a); Allin (1975, p. 3, Fig. 11). Asioryctes modified from Carroll (1988, Fig. 20-3b). Abbreviations: ag = angular; ar = articular; cp = coronoid process; d = dentary; f = lateral temporal fenestra; j = jugal; mm = attachment site for mammalian jaw muscles; o = eye socket; po = post orbital; q = quadrate; rl = reflected lamina; sq = squamosal; ty = tympanic. .
 
 
 


 
Are you convinced yet?
 
Oscillating eye sizes,
head shapes that shift back and forth,
teeth that are large, then small, then large again.
 
Yeah; I believe this stuff!

(The chart is from The Fossil Record: Evolution or "Scientific Creation" by Clifford A. Cuffey. It is on part 5 of a multipart article. The beginning of the article is here.  )

There are some Evo's who think... "It effectively demolishes the entire creationist argument. Excellent reading!"

After seeing these pix; do you?

107 posted on 06/03/2006 5:52:53 AM PDT by Elsie (Heck is where people, who don't believe in Gosh, think they are not going....)
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To: Elsie
This just in!!!
 
ANOTHER crater found!!!
 
 MUCH larger than the other one!!
 
Right under to 70 degree symbol at top of picture!!!
 
 
 
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109 posted on 06/03/2006 6:03:48 AM PDT by Elsie (Heck is where people, who don't believe in Gosh, think they are not going....)
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