We could also do only animal fossils, and then name the animals? Otherwise we would get all the plants too... (they are everywhere)
Naming the "animals" could be a big job and then not be complete - look at Messel. Best to only mention any "famous" ones from the site?
Stromatolites are neither algae nor plant??
Are we limiting the connection to sites where fossils are part of the OUV? If so then why bother whether they are plants, animals or whatever? Are there no fossilised tree sites on the list??