As we said at the beginning, one of the phyla that suddenly emerged in the Cambrian Age is the Chordata, those creatures with a central nervous system contained within a braincase and a notochord or spinal column. Vertebrates are a subgroup of chordates. Vertebrates, divided into such fundamental classes as fish, amphibians, reptiles, birds, and mammals, are probably the most dominant creatures in the animal kingdom.
Because evolutionary paleontologists try to view every phylum as the evolutionary continuation of another phylum, they claim that the Chordata phylum evolved from another, invertebrate one. But the fact that, as with all phyla, the members of the Chordata emerged in the Cambrian Age invalidates this claim right from the very start.
As stated earlier, 530-million-year-old Cambrian fish fossils were discovered in 1999, and this striking discovery was sufficient to demolish all the claims of the theory of evolution on this subject.
The oldest member of the Chordata phylum identified from the Cambrian Age is a sea-creature called Pikaia, which with its long body reminds one at first sight of a worm.75 Pikaia emerged at the same time as all the other species in the phylum which could be proposed as its ancestor, and with no intermediate forms between them. Professor Mustafa Kuru, a Turkish evolutionary biologist, says in his book Vertebrates:
There is no doubt that chordates evolved from invertebrates. However, the lack of transitional forms between invertebrates and chordates causes people to put forward many assumptions.76

The "transition from water to land" scenario, often maintained in evolutionist publications in imaginary diagrams like the one above, is often presented with a Lamarckian rationale, which is clearly pseudoscience.
If there is no transitional form between chordates and invertebrates, then how can one say "there is no doubt that chordates evolved from invertebrates?" Accepting an assumption which lacks supporting evidence, without entertaining any doubts, is surely not a scientific approach, but a dogmatic one. After this statement, Professor Kuru discusses the evolutionist assumptions regarding the origins of vertebrates, and once again confesses that the fossil record of chordates consists only of gaps:
The views stated above about the origins of chordates and evolution are always met with suspicion, since they are not based on any fossil records.77
Evolutionary biologists sometimes claim that the reason why there exist no fossil records regarding the origin of vertebrates is because invertebrates have soft tissues and consequently leave no fossil traces. However this explanation is entirely unrealistic, since there is an abundance of fossil remains of invertebrates in the fossil record. Nearly all organisms in the Cambrian period were invertebrates, and tens of thousands of fossil examples of these species have been collected. For example, there are many fossils of soft-tissued creatures in Canada's Burgess Shale beds. (Scientists think that invertebrates were fossilized, and their soft tissues kept intact in regions such as Burgess Shale, by being suddenly covered in mud with a very low oxygen content.78)
The theory of evolution assumes that the first Chordata, such as Pikaia, evolved into fish. However, just as with the case of the supposed evolution of Chordata, the theory of the evolution of fish also lacks fossil evidence to support it. On the contrary, all distinct classes of fish emerged in the fossil record all of a sudden and fully-formed. There are millions of invertebrate fossils and millions of fish fossils; yet there is not even one fossil that is midway between them.

There was no "evolutionary" process in the origin of frogs. The oldest known frogs were completely different from fish, and emerged with all their own peculiar features. Frogs in our time possess the same features. There is no difference between the frog found preserved in amber in the Dominican Republic and specimens living today.
Robert Carroll admits the evolutionist impasse on the origin of several taxa among the early vertebrates:
We still have no evidence of the nature of the transition between cephalochordates and craniates. The earliest adequately known vertebrates already exhibit all the definitive features of craniates that we can expect to have preserved in fossils. No fossils are known that document the origin of jawed vertebrates.79
Another evolutionary paleontologist, Gerald T. Todd, admits a similar fact in an article titled "Evolution of the Lung and the Origin of Bony Fishes":
All three subdivisions of bony fishes first appear in the fossil record at approximately the same time. They are already widely divergent morphologically, and are heavily armored. How did they originate? What allowed them to diverge so widely? How did they all come to have heavy armor? And why is there no trace of earlier, intermediate forms?80
The Origin of Tetrapods
Quadrupeds (or Tetrapoda) is the general name given to vertebrate animals dwelling on land. Amphibians, reptiles, birds and mammals are included in this class. The assumption of the theory of evolution regarding quadrupeds holds that these living things evolved from fish living in the sea. However, this claim poses contradictions, in terms of both physiology and anatomy. Furthermore, it lacks any basis in the fossil record.
A fish would have to undergo great modifications to adapt to land. Basically, its respiratory, excretory and skeletal systems would all have to change. Gills would have to change into lungs, fins would have to acquire the features of feet so that they could carry the weight of the body, kidneys and the whole excretory system would have to be transformed to work in a terrestrial environment, and the skin would need to acquire a new texture to prevent water loss. Unless all these things happened, a fish could only survive on land for a few minutes.
So, how does the evolutionist view explain the origin of land-dwelling animals? Some shallow comments in evolutionist literature are mainly based on a Lamarckian rationale. For instance, regarding the transformation of fins into feet, they say, "Just when fish started to creep on land, fins gradually became feet." Ali Demirsoy, one of the foremost evolutionist scientists in Turkey, writes the following: "Maybe the fins of lunged fish changed into amphibian feet as they crept through muddy water."81
As mentioned earlier, these comments are based on a Lamarckian rationale, since the comment is essentially based on the improvement of an organ through use and the passing on of this trait to subsequent generations. It seems that the theory postulated by Lamarck, which collapsed a century ago, still has a strong influence on the subconscious minds of evolutionary biologists today.
If we set aside these Lamarckist, and therefore unscientific, scenarios, we have to turn our attention to scenarios based on mutation and natural selection. However, when these mechanisms are examined, it can be seen that the transition from water to land is at a complete impasse.
Let us imagine how a fish might emerge from the sea and adapt itself to the land: If the fish does not undergo a rapid modification in terms of its respiratory, excretory and skeletal systems, it will inevitably die. The chain of mutations that needs to come about has to provide the fish with a lung and terrestrial kidneys, immediately. Similarly, this mechanism should transform the fins into feet and provide the sort of skin texture that will hold water inside the body. What is more, this chain of mutations has to take place during the lifespan of one single animal.
No evolutionary biologist would ever advocate such a chain of mutations. The implausible and nonsensical nature of the very idea is obvious. Despite this fact, evolutionists put forward the concept of "preadaptation," which means that fish acquire the traits they will need while they are still in the water. Put briefly, the theory says that fish acquire the traits of land-dwelling animals before they even feel the need for these traits, while they are still living in the sea.
Nevertheless, such a scenario is illogical even when viewed from the standpoint of the theory of evolution. Surely, acquiring the traits of a land-dwelling living animal would not be advantageous for a marine animal. Consequently, the proposition that these traits occurred by means of natural selection rests on no rational grounds. On the contrary, natural selection should eliminate any creature which underwent "preadaptation," since acquiring traits which would enable it to survive on land would surely place it at a disadvantage in the sea.
In brief, the scenario of "transition from sea to land" is at a complete impasse. This is why Henry Gee, the editor of Nature, considers this scenario as an unscientific story:
Conventional stories about evolution, about 'missing links', are not in themselves testable, because there is only one possible course of events — the one implied by the story. If your story is about how a group of fishes crawled onto land and evolved legs, you are forced to see this as a once-only event, because that's the way the story goes. You can either subscribe to the story or not — there are no alternatives.82
The impasse does not only come from the alleged mechanisms of evolution, but also from the fossil record or the study of living tetrapods. Robert Carroll has to admit that "neither the fossil record nor study of development in modern genera yet provides a complete picture of how the paired limbs in tetrapods evolved…"83
The beings claimed to represent the transition from fish to tetrapods have been several fish and amphibian genera, none of which bears transitional form characteristics.
Evolutionist natural historians traditionally refer to coelacanths (and the closely-related, extinct Rhipidistians) as the most probably ancestors of quadrupeds. These fish come under the Crossopterygian subclass. Evolutionists invest all their hopes in them simply because their fins have a relatively "fleshy" structure. Yet these fish are not transitional forms; there are huge anatomical and physiological differences between this class and amphibians.

An Eusthenopteron foordi fossil from the Later Devonian Age found in Canada.
It is because of the huge anatomical differences between them that fish cannot be considered the evolutionary ancestors of amphibians. Two examples are Eusthenopteron (an extinct fish) and Acanthostega (an extinct amphibian), the two favorite subjects for most of the contemporary evolutionary scenarios regarding tetrapod origins. Robert Carroll, in his Patterns and Processes of Vertebrate Evolution, makes the following comment about these allegedly related forms:
Eusthenopteron and Acanthostega may be taken as the end points in the transition between fish and amphibians. Of 145 anatomical features that could be compared between these two genera, 91 showed changes associated with adaptation to life on land… This is far more than the number of changes that occurred in any one of the transitions involving the origin of the fifteen major groups of Paleozoic tetrapods.84
Ninety-one differences over 145 anatomical features… And evolutionists believe that all these were redesigned through a process of random mutations in about 15 million years.85 To believe in such a scenario may be necessary for the sake of evolutionary theory, but it is not scientifically and rationally sound. This is true for all other versions of the fish-amphibian scenario, which differ according to the candidates that are chosen to be the transitional forms. Henry Gee, the editor of Nature, makes a similar comment on the scenario based on Ichthyostega, another extinct amphibian with very similar characteristics to Acanthostega:
A statement that Ichthyostega is a missing link between fishes and later tetrapods reveals far more about our prejudices than about the creature we are supposed to be studying. It shows how much we are imposing a restricted view on reality based on our own limited experience, when reality may be larger, stranger, and more different than we can imagine.86
Another remarkable feature of amphibian origins is the abrupt appearance of the three basic amphibian categories. Carroll notes that "The earliest fossils of frogs, caecilians, and salamanders all appear in the Early to Middle Jurassic. All show most of the important attributes of their living descendants."87 In other words, these animals appeared abruptly and did not undergo any "evolution" since then.