Clam. They have the hardest shells, and are least subject to decomposition.
A flower petal would be least likely. Petals and worms would leave trace fossils--fossil impressions in clay. But they have no hard parts that would survive to mineralization.
Which of the following would most likely be found as a fossil:a clam,shell,flower petal or an ancient worm?Why
the shell, or clam shell.. your commas confuse me. but it has to do with the material its orignally made of, and how it reacts to the fossilization process. the other items would be more likely to decompose rather then fossilize
colonial shoe buckles