Shark teeth (Walton on the Naze, Essex, UK)

[FunkyMonkey]

Hi all,

i am trying to learn how to identify the different species of shark teeth that you find here at Walton on the Naze. Up until now I have classified the very big teeth I have found as Otodus and the smaller ones lumped together as striatolamia macrota but I think that’s too simplistic. The ones below appear to have different characteristics to the other teeth. Could someone please help me to identify if these are indeed different species or just variations of striatolamia macrota. Thanks in advance.

tooth 1:

larger, boxier root?

[FunkyMonkey]

Tooth2:

double cuspids and deeper short striations visible in the second picture.

 

[FunkyMonkey]

Teeth 3 and 4:

flatter, no obvious striations. 

Possibly just worn striatolamia?

 

[FunkyMonkey]

I should add that these are from the London Clay deposit (early Eocene I believe).

[ynot]

Many shark teeth are shape dependent on the location in the jaw.  Upper/lower, front/ back will have different shapes.

Elasmo.com and jelasmo.com have some nice tooth sets that show the difference well.

[FunkyMonkey]

Thanks @ynot. I will take a look.