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BobWill

Jumbo Orodus tooth

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Manticocerasman

@Archie might have an idea

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NSRhunter

I have one roughly the same size from Jacksboro as well, will have to send you pictures once I get ahold of it again. 

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Ruger9a
6 hours ago, BobWill said:

This tooth came from the Finis Shale at Jacksboro Texas. That's in the Virgil Series, Cisco Group, Graham Formation, Late Pennsylvanian.

It seems large for Orodus variabilis and has some extra odd protrusions on the lingual side that don't match the smaller ones I usually find. Is there another species we can find there or is this normal? @JGM

 

Bob, I have what looks to be some Orodus teeth as well but am not sure. Could I send you some photos for verification?

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BobWill
4 hours ago, Ruger9a said:

Bob, I have what looks to be some Orodus teeth as well but am not sure. Could I send you some photos for verification?

Sure, or you can just post them on this sub-forum and let the real experts have a go.

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Ruger9a
1 hour ago, BobWill said:

Sure, or you can just post them on this sub-forum and let the real experts have a go.

Thanks Bob, I didn't want to distract from your original post.  Since it's OK with you, here they are.  Am I barking up the wrong tree?

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20200121_060420 (2).jpg

20200121_060441 (2).jpg

20200121_060501 (2).jpg

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DPS Ammonite
18 minutes ago, Ruger9a said:

Thanks Bob, I didn't want to distract from your original post.  Since it's OK with you, here they are.  Am I barking up the wrong tree?

20200121_060143 (2).jpg

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Do all the “peaks” have the net like texture? They sort of look like the nodes of a coiled cephalopod with encrusting bryozoa. What are they composed of? Cephalopod fragments should fizz in acid since they are calcium carbonate. Teeth should not fizz in acid. If the net like pin prick texture extends into the center of the structure then they might be teeth.

 

Better close up pictures of the surface of the fossils will help us determine what they are.

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FossilDAWG
4 minutes ago, DPS Ammonite said:

Do all the “peaks” have the net like texture? They sort of look like the nodes of a coiled cephalopod with encrusting bryozoa. What are they composed of? Cephalopod fragments should fizz in acid since they are calcium carbonate. Teeth should not fizz in acid. If the net like pin prick texture extends into the center of the structure then they might be teeth.

 

Better close up pictures of the surface of the fossils will help us determine what they are.

That was my first impression as well.

 

Don

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Ruger9a

I haven't done any prep on these.  Should I soak them in vinegar, I don't have any Muriatic acid.  Or just take close up photos?

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DPS Ammonite
52 minutes ago, Ruger9a said:

I haven't done any prep on these.  Should I soak them in vinegar, I don't have any Muriatic acid.  Or just take close up photos?

Put a drop or two of vinegar on them as a test to see if they fizz. Then take better close up photos. 

 

What do you see with a lens? Does the pin prick net like texture occur on all nodes? Does the texture extend thru the structure?

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Archie

Thats a gorgeous big tooth, it does look like Orodus variabilis. Not sure about your specimens @Ruger9a where they are broken there doesnt appear to be the dentine tubules you would expect to see in the cross section of a Holocephalan tooth crown.

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Ruger9a

I'm really dreading this......but I took more photos to try and help with the identification.  I just cannot seem to take good photos.  Oh, I soaked them in 100% white vinegar for 30 minutes and the "humps" did not have any reaction.  There was tiny, tiny fizzing on the flat part and around the ends for a few minutes.   Here goes.

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tooth 1 (4).jpg

tooth 1 tip (3).jpg

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tooth 2 (4).jpg

tooth end (3).jpg

tooth hump1 (2).jpg

tooth hump1a (2).jpg

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Ruger9a

Here are the rest

tooth piece (2).jpg

tooth side lip (3).jpg

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DPS Ammonite

A mystery. Lack of fizzing in acid, dark coloration and textures does look like teeth or bone material. Now we need some more info to help with ID.

 

Where did these come from? Age? Jacksboro? @Ruger9a

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The Jersey Devil

That piece kind of reminds me of a lungfish tooth.

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Ruger9a

They were not together, I thought they were the same.

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Ruger9a

Last set with different camera.

DSCN4011 (2).JPG

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BobWill

I agree with DPD Ammonite these look more like the nautiloid Tainoceras sp.

 

tain.jpg.b2f7b2a92fc32dd51190de0eb43695f3.jpg

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Ruger9a
17 hours ago, DPS Ammonite said:

A mystery. Lack of fizzing in acid, dark coloration and textures does look like teeth or bone material. Now we need some more info to help with ID.

 

Where did these come from? Age? Jacksboro? @Ruger9a

All I have was a description stating "nice teeth from Texas", sorry.

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Ruger9a

Texas had "?" after it.

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