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Here's A Few Cretaceous Fossils That Have Me Stumped


Mtskinner

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Okay, please stop. I am so extremely jealous at this point, don't know if I can take anymore! :)

Excellent collection. Congrats!

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First one could certainly be the end of a Trionychid (soft shelled turtle) rib in excellent unabraded condition. Second one could be a heavily abraded Hybodont shark cephalic spine.

I think Opisthotriton could be right about the first one. :)

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The human mind has the ability to believe anything is true.  -  JJ

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Thanks C50, I was just getting warmed up!

Seriously though, I have collected this weird stuff for years and never had a clue what half of it was until I joined this site...Once Andy busted out with that Cretaceous seas frame a while back, it put me on a mission to label everything I have so that I can mimic his awesome educational display. I do a lot of displaying at several Indian artifact shows around my area and always try to bring a frame or two of teeth with me. Those frames always seem to steal the show and spark countless conversations...especially when the boy/girl scout packs walk through! Once I seen Andy's frame, I knew that was what I needed to do to help me explain what all of my finds were!

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Is it possible that this is associated with the same species? This was found by a friend not far away from the rib section.

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Edited by Mtskinner
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Very cool to see what you have found!!

The partial jaw with the 3 teeth is really something special to have!

Congrats to you!!

Only teeth I have found so far are bison teeth!! LOL

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Thanks OFB! Patience mixed with a little manual labor and the good ones will find you! Keep those eyes to the ground!

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  • 4 months later...

I've got a new oddball that doesn't quite fit into the Cretaceous soup of items I find here in SE Alabama. The tooth is 1-7/16" long, 5/8" wide, and right at a 1/4" thick towards the base. As always with my unknowns...any ideas and comments would be greatly appreciated.

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Thanks D, never thought about that one since I thought they didn't get that big...especial down my way!

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Yes that is protosphyraena. I assume you were near the Monroeville Chalk, or a similar formation. The Mooreville Chalk has had several occurrences of protosphyraena parts, although a tooth that large and in that condition is rare.

EDIT: I am also getting quite jealous. I have found all of those same species in my spot in Mississippi (minus the protosphyraena), but yours are huge! And in great condition! Try collecting some micro matrix there, I bet you can find some good stuff! Have you found any hadrosaur teeth yet? I just recently found my first one.

Edited by TNCollector
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Thanks TNCollector, I'm actually hunting in the Blufftown formation and have never really thought of looking for micros! That's definitely something I'll have to try though! As far as hadrosaurs go, I've only found one full tooth and two partials.

Edited by Mtskinner
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Got another "tweener" tooth that I need help with! This was found in the upper Blufftown formation which should put it in the early Cretaceous period. The only thing close to this that we find is Ginsu but this really doesn't fit that's species to me. It closely resembles an Isurus praecursor (early Mako) but as far as I know they are only found in Eocene areas way further South. The tooth is 1-3/16" long and 11/16" wide. Out of the thousands of teeth that I've found this is the only one of its kind so I'm pretty sure it's rare for my area! Any thoughts/comments as to what it is would be greatly appreciated!

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Edited by Mtskinner
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Interesting tooth. One correction: the Blufftown Formation is actually upper Cretaceous not lower Cretaceous.

I really want to say that it is an upper lateral goblin shark tooth, however I assume that you have found many of those, and can distinguish between them. That is still what I am going with.

The upper Cretaceous is also the beginning of the sand tiger sharks, which have teeth that look similar to that one, but they are rare, and usually not so large.

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The Blufftown formation is lower campanian and a good paper on fishes/sharks from there is from Case & Schwimmer. It's a free sign up to Journal of Paleontology. Your tooth is very interesting and does not look cretaceous, actually looks like a mako.

Late Cretaceous Fish from the Blufftown Formation (Campanian) in Western Georgia

Gerard R. Case and David R. Schwimmer

Journal of Paleontology

Vol. 62, No. 2 (Mar., 1988), pp. 290-301

Edited by Troodon
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Like Troodon said: Lower Campaignian Age = Late Cretaceous Epoch.

It certainly does look Eocene to me, but there is no Eocene anywhere around there? Cretaceous only makes sense.

Edit: What county is this tooth from?

Edited by TNCollector
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That's correct, I mis-stated...it is late Cretaceous. The tooth was found on the Barbour/Russell county line.

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  • 1 month later...

I've got a few new finds that my hunting partner has recently pulled up that I just can't figure out. This 1st one appears to be a molar of some sort but of what I have no idea! Any thoughts/comments would be greatly appreciated. It was found in the same creek/formations as the rest of what I've posted. It's just over an inch long and a half inch wide.

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Here's a 2nd molar of some sort with the roots attached. This one doesn't appear quite as old but is still fossilized and is out of the same creek

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And these are what I believe to be horse incisors but still question that. The largest is over 1/2" wide and an inch long

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And my favorite I saved for last...already know this one just wanted to share! It's a killer Ginsu that has one of the best burlette's I've seen from my area. Not the biggest (1-1/2" long) but definitely one of the best I've seen from here. Enjoy!

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Edited by Mtskinner
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You indicated the items shown in Posts 118-119-120 are from the same formation as the others posted, the Blufftown Formation? They don't appear to be cretaceous.

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I completely agree Troodon that they are out of the norm but they are in fact all from Russell county. One of the same creeks discussed in those papers that state that it's the blufftown formation. The horse...if it is in fact a horse is not unusual in that we find the large molars all the time. The 1st odd molar has striations that remind me of a mammoth tooth and I've found several pieces of those...but this one is way too small for that.

Edited by Mtskinner
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You might be getting younger material running into those streams. If thats the case identifying material just got that much harder.

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