Right from the scientists themselves: “We came across the muscle tissue during our analysis of several hundred fossil samples taken from an ancient lake bed in Southern Spain. It was immediately identifiable by the sinewy texture visible under the microscope, says Dr Patrick Orr from the UCD School of Geological Sciences, University College Dublin. According to the University College Dublin geologists, the muscle tissue is organically preserved in three dimensions, with circulatory vessels infilled with blood.” You and others have in mind an erroneous view of what a FOSSIL must be composed of. A FOSSIL need not be mineral that has replaced the original but can the original its self as the correct understanding of the word FOSSIL shows: “Merriam-Webster Dictionary Main Entry: 1fos·sil Pronunciation: \Ëfä-sÉl\ Function: adjective Etymology: Latin fossilis obtained by digging, from fodere to dig more at bed Date: 1604 1 : preserved from a past geologic age 2 : being or resembling a fossil 3 : of or relating to fossil fuel” It’s the relative age and preservation that that earns the term FOSSIL not the means of such. So before the petty insults and accusations of lying fly around let’s see why tissue is not tissue and preserved is not preserved, “direct from the scientists themselves”.
fos⋅sil /ˈfɒsəl/ Show Spelled Pronunciation [fos-uhl] Show IPA Use fossil in a Sentence See web results for fossil See images of fossil noun 1. any remains, impression, or trace of a living thing of a former geologic age, as a skeleton, footprint, etc. 2. a markedly outdated or old-fashioned person or thing. 3. a linguistic form that is archaic except in certain restricted contexts, as nonce in for the nonce, or that follows a rule or pattern that is no longer productive, as the sentence So be it. adjective 4. of the nature of a fossil: fossil insects. 5. belonging to a past epoch or discarded system; antiquated: a fossil approach to economics.
Creationists are definition #2, I believe.