There's a couple of NoLWoCS mini-articles which mix up Vulcanian (an asteroid type) and Hephaestian (a volcanic planetary type).
Both these examples pop up if you search for 'vulcanian'.
We have EoVulcanian Subtype (can't get a link from any search source), which talks about 'Vulcanian' worlds which are volcanic due to being in the early stages of development. It should be EoHephaestian, talking about Hephaestian worlds. The Hephaestian article doesn't mention the EoHephaestian subtype at all, so it could probably be inserted directly into there and the mini-article removed.
Similarly we have Ionian Subtype, which says it is a Vulcanian subtype, but of Europan constitution. This should probably just be an alternative name for EuHephaestian (because Io is the example given for EuHephaestian worlds in the Hephaestian article), and so the mini-article could just be deleted. I also note that "Hephaestian world of Europan constitution" makes not sense, as the Europan article talks about ice worlds with deep oceans, which couldn't possibly have Hephaestian-type volcanism (cryovolcanism would be the only option).
Both these examples pop up if you search for 'vulcanian'.
We have EoVulcanian Subtype (can't get a link from any search source), which talks about 'Vulcanian' worlds which are volcanic due to being in the early stages of development. It should be EoHephaestian, talking about Hephaestian worlds. The Hephaestian article doesn't mention the EoHephaestian subtype at all, so it could probably be inserted directly into there and the mini-article removed.
Similarly we have Ionian Subtype, which says it is a Vulcanian subtype, but of Europan constitution. This should probably just be an alternative name for EuHephaestian (because Io is the example given for EuHephaestian worlds in the Hephaestian article), and so the mini-article could just be deleted. I also note that "Hephaestian world of Europan constitution" makes not sense, as the Europan article talks about ice worlds with deep oceans, which couldn't possibly have Hephaestian-type volcanism (cryovolcanism would be the only option).