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Here's A Few Cretaceous Fossils That Have Me Stumped


Mtskinner

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The last one is on the small side and as with most of the bone we find its a little beat up.

I believe this is a dorsal process of vertebra from a Champsosaurus. They are typically found disarticulated and in a preservation like yours.
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The object in post #73 is a fish rostrum similar but different from Cylindracanthus. A picture of the broken cross section might help in the ID. The small circles in the grooves are tooth sockets.

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The object in post #73 is a fish rostrum similar but different from Cylindracanthus. A picture of the broken cross section might help in the ID. The small circles in the grooves are tooth sockets.

It has a round cross section...I'll get a pic of it

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Here's one more stumper I have. It's just over the 2 inch mark and its triangular in cross section. It doesn't appear to be a tooth but if it is it's the only one I have like it.

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post 79 is a hybodont dorsal fin spine, great stuff!

---Wie Wasser schleift den Stein, wir steigen und fallen---

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Is this a Plesiosaur tooth??? The tooth is 2-1/4" long and 3/4" wide at the base and is round in shape. It was found in the same creek as the rest of the items I've posted...Any thoughts/comments would be appreciated!

Thanks,

Terence

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Holy cow, that's huge!

Plesiosaur is my first impression, but I would yield to anyone with more than my paltry experience.

"There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant

“Try to learn something about everything and everything about something.” - Thomas Henry Huxley

>Paleontology is an evolving science.

>May your wonders never cease!

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plesiosaur indeed, another great find!

---Wie Wasser schleift den Stein, wir steigen und fallen---

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  • 2 weeks later...

Here's another weird item that I can't figure out. Not exactly sure it's even a tooth but looks as though it does have enamel. It's almost completely flat and is 5/8" long, 9/16" wide.

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Looks like a scute or dermal denticle to me.

Maybe someone else will weigh in with some idea.

Regards,

    Tim    -  VETERAN SHALE SPLITTER

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Here's another weird item that I can't figure out. Not exactly sure it's even a tooth but looks as though it does have enamel. It's almost completely flat and is 5/8" long, 9/19" wide.

It looks a lot like a Tertiary sawfish rostral tooth. Are there any deposits at the site that aren't Cretaceous?

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It looks a lot like a Tertiary sawfish rostral tooth. Are there any deposits at the site that aren't Cretaceous?

Boy, I had the same impression a sawfish rostral tooth. Let's hear back Mtskinner.

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It looks a lot like a Tertiary sawfish rostral tooth. Are there any deposits at the site that aren't Cretaceous?

I guess it's possible...this is a picture of some of the sawfish rostral teeth we find. Are you thinking this could possibly be a split root section of a tooth, a large tooth, or a different type of all together?

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This particular tooth was found along side the others...well in the same creek. The creek is located smack in the middle of the Selma group...late cretaceous. It's also the only one I've seen as well.

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  • 5 weeks later...

Here's another one that has me stumped. It doesnt seem to fit in with the other crock or mosasaur teeth we've found in this area. The tooth is just over 2" long and 3/4" wide. It's round in shape with a faceted enamel that has no carinae on either side. Any comments will be greatly appreciated!

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I don't think crock teeth are faceted so I would rule them out. Mosasaurs teeth can be so I would lean in that direction. Let's see what others say. Boy you sure have a host of different species in your collecting areas. Nice find.

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  • 2 months later...

I've got a few more that I can't quite figure out. I believe this 1st one is a piece of a turtle shell...its 2" long and 3/4" wide.

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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.

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