Staff have already indicated that “shell” is not really useful as a distinct annotation.
https://forum.inaturalist.org/t/what-annotation-for-mollusc-shells/54339/11
This is part of the organism so I don’t think this is right. It’s actually explicitly stated to be not used for shells.
https://help.inaturalist.org/en/support/solutions/articles/151000191830-what-are-the-definitions-of-inaturalist-annotations-#Evidence-of-Presence-(within-Life,-except-Plantae)
I just put organism.