I figured I’d start sharing my discoveries here along with my method in identification such that submissions can be verified by others and added to @Stretchious boundlesscrafting.com. I’m new so I may make mistakes. For creatures I’m using the Master Sheets as the icons I’ve seen elsewhere are just too small. I’m only adding things here that I don’t already see listed on the website.
Nasharil
Wildstock - Tier 5
Identified Via - Moose-like Antlers
Cuttletrunk - Tier 1
Identified Via - Size, Lack of Fin-Like Appendages Around Eye
Cuttletrunk - Tier 4
Identified Via - Side-Fin With Slits/Wrinkles(lesser tiers don’t have slits/wrinkles), Rear Appendages Around Tentacles (lesser tiers don’t have)
Vulpto
Spitter - Tier 5
Identified Via - Star on Tail (lesser tiers don’t have), Large Armor-Like Plates on Back