Gong, Y., Xu, R., and Hu, B. 2008. Endolithic fungi: a possible killer for
the mass extinction of Cretaceous dinosaurs. Science in China, Series D:
Earth Sciences 51(6):801-807. doi: 10.1007/s11430-008-0052-1.
That's what is called a failure of peer-review. A paper that tries to
explain "the mass extinction of Cretaceous dinosaurs" instead of trying to
explain the mass extinction at the K-Pg boundary, period, and that by
looking at a single site rather than the whole world, and that without
testing for stratigraphic distribution, and that in 2008. The paper is
interesting in its own right -- fossil hyphae in the interior of
eggshells! --, but the extinction stuff belongs into the 1960s at the
latest.