In 1998 scientists discovered that fungi split from animals about 1.538 billion years ago, whereas plants split from animals about 1.547 billion years ago. This means fungi split from animals 9 million years after plants did, in which case fungi are actually more closely related to animals than to plants. The fact that fungi had motile cells propelled by flagella that are more like those in animals than those in plants, supports that.
American Society for Microbiology:
Computational phylogenetics comparing eukaryotes revealed that fungi are more closely related to us than to plants. Fungi and animals form a clade called opisthokonta, which is named after a single, posterior flagellum present in their last common ancestor. Today, this posterior flagellum propels primitive fungal spores and animal sperm alike.
WHAT the fuck