Hi guys, I have come to you for help as I really don’t know what I’m talking about when it comes to New Zealand shark teeth (I’m fairly sure these are all selachian), anyway, I have separated them into what I think are the separate species based on my understanding of tooth morphology, sorry for lack of scale, for reference the teeth vary from around 2mm-5mm
here is species 1
side view of the most complete one
There appear to be very faint serrations more prevalent in one of them