Writing in the journal Nature, Ian Tattersall reviews a new book by Ann Gibbons, called The First Human: The Race to Discover Our Earliest Ancestors. In the review, he notes the following:
But to complicate matters further, palaeoanthropology is too often seen as a sort of zero-sum game, with the result that published specimens are often vigorously defended from the eyes of rival scientists, making it impossible to test the describer's published assertions. What other branch of science keeps it primary data secret?
It is this that certainly spurs on YECs like Marvin Lubenow, who argue that we deal in a world of illusory evidence. Not good.