Ukraine shark teeth

[Notidanodon]

Hi guys recently recieved these nice sharks teeth, the info on them was just zhotymyr quarry, Ukraine, I assume it’s Eocene from the species ( if I got those right) but any extra info would be greatly appreciated

 

1.carcharias hopei

 

 

2.odontaspis spp.

 

[Notidanodon]

Some more

3.isurolamna inflata

4.?

5.odontaspis spp

6.striatolamia spp

7. Jaekolotodus trigonalis

[Notidanodon]

8.?

9. carcharias hopei

10. striatolamia macrota?

[Notidanodon]

I did some more research and they are oligocene 33,9 mya

[Notidanodon]

Any ideas guys?

im not sure who to ask maybe

@Al Dente

[Praefectus]

I not sure if the tooth you have labeled Isurolamna is correct. Isurolamna bajarunasi is described from the lower oligocene of northwest Kazakhstan, but the examples I've seen have slimmer crowns. I'm not sure what species your tooth actually is. 

[Praefectus]

Here are some Isurolamna inflata from the Nanjemoy Formation. I don't think your teeth are a match, but I'm not super familiar with Ukrainian teeth. 

 

[Notidanodon]

1 hour ago, Praefectus said:

I not sure if the tooth you have labeled Isurolamna is correct. Isurolamna bajarunasi is described from the lower oligocene of northwest Kazakhstan, but the examples I've seen have slimmer crowns. I'm not sure what species your tooth actually is. 

Im not sure either, however, i had another idea, what about hypotodus verticalis, that has a similar blade shape, not sure about the cusps shape though, thanks for your help

[Al Dente]

On 6/16/2020 at 1:26 PM, will stevenson said:

10. striatolamia macrota?

Some of your teeth do remind me of Striatolamia.

[Troodon]

Straitolamia rossica is known from the Eocene of Kazakhstan