Pseudoscience is stuff like Darwinists concocting a hypothesis about how this or that evolved without putting their hypothesis to the test. That happened a lot in evolution "science" ... why bother with the scientific method when you can invent fairy tales and pass them off as science?
"It is easy enough to make up stories of how one form gave rise to another, and to find reasons why the stages should be favoured by natural selection. But such stories are not part of science, for there is no way of putting them to the test." (Dr. Colin Patterson)
"No fossil is buried with its birth certificate. That, and the scarcity of fossils, means that it is effectively impossible to link fossils into chains of cause and effect in any valid way... To take a line of fossils and claim that they represent a lineage is not a scientific hypothesis that can be tested, but an assertion that carries the same validity as a bedtime story—amusing, perhaps even instructive, but not scientific."
(Henry Gee, "In Search of Deep Time")