I'm removing myself as assignee. I automatically assigned myself when creating this task but it's really one for community contribution! It's a valuable thing to work on, as it will make biodiversity data on Wikimedia Commons so much more usable to the world at large.

The task may also become easier with the help of Generative AI. The latter should not take over the decisionmaking process but it will help with the thinking and breaking down in subtasks.

@TiagoLubiana as the WiR of the Biodiversity Heritage Library you may actually be able to give input on progress on this. Also I'm generally tagging WikiProject-Biodiversity to give a fresh nudge :-)

While this is SDC, it may also be of interest to Wikidata-WikiProject-Ontology as Wikidata and Wikimedia Commons data models should be well aligned.