odontocete teeth ID, Pliocene

[hemipristis]

hello everyone,

 

I am looking for some assistance in identifying two odontocete teeth from the Pliocene Yorktown Fm, Lee Creek Mine. The first photo shows the two teeth in question on the left vs a Kogiopsis sp. tooth on the right  

 

Are the teeth in question just Kogiopsis with the crunchy outer coating intact?   Marine mammal ID isn't my forte.

 

There are 3 photos each. Interesting that the second of these teeth almost has an opaline filling of the basal cavity. 

 

Any help is greatly appreciated!

 

TOOTH #1

TOOTH #2

 

Edited May 29, 2021 by hemipristis

[Fossildude19]

@Boesse

[Boesse]

So the smaller one is the "Kogiopsis" morphotype whereas the biggest one is a Scaldicetus-grade sperm whale: note that it has a more inflated root, and most critically, enamel; Kogiopsis has no enamel on its crowns. The other one missing the crown is likely also a Scaldicetus-grade sperm whale.

[hemipristis]

10 hours ago, Boesse said:

So the smaller one is the "Kogiopsis" morphotype whereas the biggest one is a Scaldicetus-grade sperm whale: note that it has a more inflated root, and most critically, enamel; Kogiopsis has no enamel on its crowns. The other one missing the crown is likely also a Scaldicetus-grade sperm whale.

thank you!