Are These Megadolon Teeth?

[salsipuedes]

A friend of mine fond this, a teacher in a University claims they are Megadolon, i disagree.

[mkrofdrms]

Salsi,

Can you ask your friend where did he find those specimens,I'm not even sure if the teeth are fossilized, and if you could show both sides we may be able to see the burlette, having said that, and others with more experience may override me I will venture to say those are great whites. Please take better pics and you will get input from others as well pics of great whites.Best. MK

[salsipuedes]

Salsi,

Can you ask your friend where did he find those specimens,I'm not even sure if the teeth are fossilized, and if you could show both sides we may be able to see the burlette, having said that, and others with more experience may override me I will venture to say those are great whites. Please take better pics and you will get input from others as well pics of great whites.Best. MK

In a salt flat in the desert of Baja California Mexico. I am saying they are Great White as well. Heres another one he found:

[Rustdee]

That last picture is not a Great White. Looks like Angustidens, but I'm not 100 percent sure. Anyways great teeth!

Edited December 30, 2014 by Rustdee

[Doctor Mud]

Welcome to the forum.

Can you give us an idea of the size of the teeth? If the hand in the image was roughly the same size as mine we would be talking 3 inches diagonal length, so within the realms of Great White (Carcharodon carcharias) dimensions.

A better focused shot of both sides of these teeth would help identification - especially shots of the edges; to look at the serrations.

My impression is that at least the lower tooth is not a C. megalodon tooth - this is based on the shape of the root. Preliminary ID would be C. carcharias pending better pictures for both teeth.

Try and post some better pics and there are many members with more experience than me that will hopefully help out.

[mrieder79]

In the OP picture I can see serrations on the tooth which is closer to the palm. My guess is a great white. The other one, closer to the fingertips lacks serrations and looks like a mako to me.

The second picture is definitely a meg because it has a bolette and cusps. I agree that Angustidens is possible but I'm not 100% on those.

For a positive ID on the first pic, I would like to see the other side of the teeth. The giveaway for megs is serrations and a bolette, the little line of different colored enamel between the enamel and root. Most megs have this washed out but it is intact in good specimens.

[mkrofdrms]

Hi Salsi,

I was half asleep when I wrote the response last night, always excited to hear from brothers in my homeland, I was born in Mexico and came to the US many, many years ago, so double welcome from me, the forum is an amazing place to find info and especially ID's, people like you from every corner of the world expand the knowledge by sharing pictures like the ones you are showing.

The second picture for sure it isn't a great white, agree with Angustidens a great Angy, but it is not in my common finds at Calvert Cliffs Maryland, so other than pictures I don't have the knowledge to give a yes; for the first pics I still think they are Great white's, I'm waiting to read from Marco sr or Auspex and see what's their take. Better pics will help a great deal, salt flats also explains the coloration and condition ofthe teeth,

Again welcome. MK

[Auspex]

Were all these teeth found in the same deposit?

[Plax]

I'd say the second one was an auriculatis in a small child's hand. I agree that the first ones look like C. carcharius, fossil modern great whites. I don't think that these were found in the same place.

[SoreBack]

The two in the first photo have serrations that are more coarse and irregular than a C. megalodon would typically have. I agree with the others that suggest that they are C. carcharias. The second photo looks to me like C. auriculatus or C. angustidens.

[siteseer]

I believe there is at least one area in Baja CA where Late Eocene, Oligocene, Miocene, and Pliocene shark teeth may be found not too far from each other. I think it's in the El Cien area that Late Eocene and Miocene teeth have been collected.

The degree of weathering in the lighter-colored teeth indicates that the specimens may have been exposed to the sun for some time or at least partly exposed.

I'd say the second one was an auriculatis in a small child's hand. I agree that the first ones look like C. carcharius, fossil modern great whites. I don't think that these were found in the same place.

[Doctor Mud]

I believe there is at least one area in Baja CA where Late Eocene, Oligocene, Miocene, and Pliocene shark teeth may be found not too far from each other. I think it's in the El Cien area that Late Eocene and Miocene teeth have been collected.

The degree of weathering in the lighter-colored teeth indicates that the specimens may have been exposed to the sun for some time or at least partly exposed.

Interesting - sounds like a great place to collect.

I have some bleached white teeth like this from New Zealand that obviously had been eroded and sitting on top of an enscarpment for some time.