North Sulphur River Finds

[flyingpenut]

I took a trip to the NSR in early February and here are my finds. All of the bones in picture 2 as well as the closeups, I'm assuming mosasaur, were found on the surface but all with in about 10 yards of each other. They were on the other side of the river from the large cliff face so they wouldn't have fallen out of the matrix from it. It was a remote large creek area so could have just been revealed from the ground slowly over time and no one found them until I came across it. The bones themselves were also different from other mosasaur im used to finding. They had a reddish tent to them and they had a rougher texture, almost a little sandstoneish. Maybe the fossilization process at this spot was a little different than the normal NSR fossilization. Im interested in pictures 3-5, is it a fossil or geological? Im also interested in pictures 6 and 7, coprolite? I know pictures 8-10 are geological but I thought they were pretty cool whatever they are. The rest are closeups of the bones. 

 

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[Creek - Don]

1 hour ago, flyingpenut said:

I'm interested in pictures 3-5, is it a fossil or geological? 

 

That is definitely a fossil bone.   Looks almost like a worn Plesiosaurus paddle bone.   

[Creek - Don]

6 minutes ago, Creek - Don said:

 

That is definitely a fossil bone.   Looks almost like a worn Plesiosaurus paddle bone.   

 Could also be the turtle plastron bone