Topic: Shark Taxonomy Cleanup BUR

The bulk update request #8346 is pending approval.

remove implication triakid (167) -> ground_shark (640)
remove alias triakidae (0) -> triakid (167)
remove implication leopard_shark (167) -> triakid (167)
remove implication ginglymostomatid (277) -> carpet_shark (1030)
remove alias ginglymostomatidae (0) -> ginglymostomatid (277)
remove implication nurse_shark (277) -> ginglymostomatid (277)
remove implication mitsukurinid (75) -> mackerel_shark (2093)
remove alias mitsukurinidae (0) -> mitsukurinid (75)
remove implication goblin_shark (75) -> mitsukurinid (75)
remove implication chlamydoselachid (34) -> hexanchiform (34)
remove alias chlamydoselachidae (0) -> chlamydoselachid (34)
remove implication frilled_shark (34) -> chlamydoselachid (34)

Reason: Followup:

alias triakid -> houndshark
alias triakidae -> houndshark
alias hound_shark -> houndshark
imply leopard_shark -> houndshark
imply houndshark -> ground_shark
alias ginglymostomatid -> nurse_shark
alias ginglymostomatidae -> nurse_shark
imply nurse_shark -> carpet_shark
alias mitsukurinid -> goblin_shark
alias mitsukurinidae -> goblin_shark
imply goblin_shark -> mackerel_shark
alias chlamydoselachid -> frilled_shark
alias chlamydoselachidae -> frilled_shark
imply frilled_shark -> hexanchiform

Cleaning up unnecessary scientific name layers.

The bulk update request #8347 is pending approval.

Reason: Part II: Fixing the placement of requiem shark in the tree, and adding some currently unimplied species into their proper places. Also cleaning up a hybrid tag.

pleaseletmein said:
alias chlamydoselachid -> frilled_shark

Cleaning up unnecessary scientific name layers.

I believe this is an edge case where the scientific name layer is actually perfectly valid. Yes, the family is often called "frilled sharks", but it includes two species - one of which is also just called a frilled shark (the other is the South African frilled shark). Once you include the two additional extinct genera in the mix, the family tag is actually pretty useful, even if right now it has 100% overlap.

EDIT: Just did some digging, it's a very similar case with the Nurse Sharks and Ginglymostomatids. Yes, the family is also called "nurse sharks", but there's also a species that's just called a nurse shark as well (on top of 4 other extant species). Having a family tag here is useful. The difference is, I think having nurse shark be the family tag is valid, because the species that's referred to as just a nurse shark also goes by "Atlantic Nurse Shark" sometimes, so I think this one can work.

Mitsukurinids are a little different in this regard. There's a single extant species, and although there are several other fossil genera I think the odds of them ever appearing are slim enough for the family tag to be destroyed. It can be reinstated if one of them ever gets posted on the site.