Saturday, July 27, 2019


July 27, 2019 Saturday

Bedtime Story 


Fossilization and Missing Links


Tonight we shall continue with the extract from the 1914 essay of Nathan Cobb titled “Nematodes and their Relationships” that he wrote for the Yearbook of the United States Department of Agriculture.

“The location of various plants and animals would still be decipherable, and, had we sufficient knowledge, in many cases even their species could be determined by examination of their erstwhile nematode parasites.” 

This is why in spite of their numerical predominance the soft-bodies organisms are rarely found in fossil forms which is dominated by molluscs, vertebrates, echinoderms (marine animals exhibiting radial symmetry such as starfishes) and the brachiopods (possessing hard “valves” or shells on their upper and lower surfaces).       
 
Having understood the process of fossilization it is therefore not surprising that the so called “intermediate forms” or the “missing links” between species that the True-Believers of all hue and colors seek or demand are physically absent in our midst.

And yet it is fairly easy to be deluded by one’s ignorance (and denial) and come to the false conclusion that “transitional forms” in the forms of fossils are absolutely lacking for I can provide you with a long list of them.

The “transitional forms” of fossils have been divided into categories that reflect their transitions from one class of organisms to other such as subphylum vertebrata, invertebrate, superclass agnatha, jawed vertebrates (gnathostomata), bony fishes or osteichthyes and so on.

The categories of “transitional forms” are as follows:

Invertebrate to vertebrate

Jawless fish to jawed vertebrae

Acanthodian to Shark

Primitive Jawed Fish to Bony Fish

Fish to Amphibian

Primitive to Modern Amphibians

Amphibian to Reptile

Early reptile to diapsid (group of amniote {land egg-laying} tetrapods)

Early diapsid to turtle

Early synapsid (possess temporal fenestra behind each eye orbit) to mammal

Dinosaur to Bird

Primates

Non-human primate to human

The fact is that even though plenty of fossils of “transitional forms” have been discovered to the mind of a True-Believer they will always be insufficient and inconclusive.

Can you guess why?

The answer is the pseudo problem of gaps in the fossil record so beloved of True-Believers.

Stay tuned to the voice of an average story storytelling chimpanzee or login at http://panarrans.blogspot.com
                              
Good night Mon Ami and my fellow cousin ape.
                           
  
                

                  












Advertisements

Another great educator and a teacher that I am aware of is Professor Subhashish Chattopadhyay in Bangalore, India.

While I narrate stories, Professor Subhashish an electronic engineer and a former professor at BARC, does and teaches real mathematics and physics.

He started the participation of Indian students at the International Physics Olympiad.

Do visit him here:


All his books can be downloaded for free through this link:


For edutainment and English education of your children, I recommend this large collection of Halloween Songs for Kids:



No comments:

Post a Comment