this post was submitted on 29 Aug 2026
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there's actually new research saying prototaxites may not have been fungi, but belonged to an entirely separate kingdom that's now extinct. one of the defining characteristics of fungi are that their cell walls contain chitin, the same stuff that makes arthropod shells. prototaxites was found not to contain any chitin, while other ancient fungi of the same age as prototaxites already did, so it's not a feature of fungi that was adapted later. prototaxites was also found to contain microscopic structures that don't exist in any known fungus species
edit: damn, someone beat me to it while I was trying to find the details
Yeah... be sure to read the replies first next time
the other reply didn't exist yet when I started writing mine. sorry that I took longer because I tried to provide more detail about the thing you seemed interested in