How then do we explain the fossil history which appears to show a progression from simple to complex? This could not be through the "transmutation of species" as it is generally taught, because, as every good creationist knows, the "evolutionary tree" is all twigs and leaves with no branches and certainly no trunk! The fossil record does not exhibit a gradual step by step development.
"The evolutionary trees that adorn our textbooks have data only at the tips and nodes of their branches; the rest is inference, however reasonable, not the evidence of fossils…" (Stephen Jay Gould in The Panda's Thumb, 1980, pp.179, 80).
Almost always we find a sudden appearance of a particular species followed by "stasis", meaning that the species remain virtually unchanged for its tenor on earth. There are species that appear to be transitional but little to no transitional forms (for example half-wings). All examples found are fully formed and fully functional.
Charles Darwin wrote: "If my theory be true, numberless intermediate varieties, linking close together all the species of the same group must surely have existed."
There should be innumerable step by step fossils available to us, but there is not. Biologist David S. Woodruff has stated: "Fossil species remain unchanged throughout most of their history and the record fails to contain a single example of a significant transition." ("Evolution :The Paleobiological View" in Science 16 May 1980, p. 716).
There are huge gaps at the bottom of every new order of life, which is not just the opinion of a novice.
C.C. Olsen who wrote "The Evolution of Life" for New American Library (1965, p. 94) said: "Many new groups of animals suddenly appear, apparently without close ancestors. Most major groups of organisms, phyla, sub-phyla, and even classes, have appeared this way. This aspect of the record is real, not merely the result of faulty or biased collecting. A satisfactory explanation of evolution must take it into consideration and provide an explanation".
A.S. Romer, who wrote Man and the Vertebrates and Vertebrate Paleontology, on no fewer than sixteen occasions admits huge gaps in the fossil record that prevents the relating of various origins of life forms. This includes such large groupings as the monkeys, seals, marsupials, bats, marine reptiles, turtles, frogs, salamanders and the first vertebrates. From other scientific works we can also add urchins, sponges, jellyfish, trilobites, invertebrates, spiders, insects, snakes, monotremes (egg-laying mammals), rodents, deer, cattle, and giraffes.
Geologist David Kitts in an article "Paleontology and Evolutionary Theory said: "Evolution requires intermediate forms between species and paleontology does not provide them." (Evolution, Sept. 1974, p. 467)