Page 26 - The Evolution Impasse 1

The Difference Between the Eggs of an
AmphIbIan and a ReptIle

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a amphibian-reptile evolution lies in the struc- -
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n need to become fully reptilian. Yet the slightest error in such a transition will lead to that t
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p particular species becoming extinct. .
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fossil has been found that proves that a frogs, salamanders and caecilians.
half-fish or a half-amphibian ever lived. There is no evidence of any Paleozoic
In this book, Vertebrate Paleonto- amphibians combining the characteris-
logy and Evolution, the noted evolutio- tics that would be expected in a single
nist writer Robert L. Carroll says that in common ancestor. The oldest known
fact, we have no fossils of any interme- frogs, salamanders, and caecilians are
diate form between early amphibians very similar to their living descen-
and rhipidistian fish. 16 dants. 17
Colbert and Morales, evolutionist pa- Up until about 60 years ago, an ex-
leontologists, make the following com- tinct fossilized fish called the Coela-
ment on the amphibians’ three classes— canth, estimated to be 410 million years
THE EVOLUTION IMPASSE I