Dads and Sons on the Potomac

[automech]

Back near the end of June I took two friends, David and Paul, and their boys with my two boys for a day at my spot on the lower Potomac. With lunches and water packed and great weather  for the forecast, we started our 100’ descent to the river shore.  David and his youngest son were first timers. So, I kept them close to me in the beginning and showed them the ropes of digging and sifting the sandy matrix. Neither of them were having any luck so, to give them confidence, a couple of nice shark teeth I found in my screen secretly ended up in theirs when I put a shovel full of sand in their screen. Not long after that they got the hang of it and found some nice pieces. Everyone was doing great. I went and scouted an area further up the shore, which I was grateful wasn’t blocked by downed trees, and found a really productive spot. It’s here where I found two shark teeth I’ve never seen in this spot before. And, I’ve been coming here for at least 15 years.

This first one screams to me some kind of meg

I love that there are some well defined serrations on it. Could anyone in the MD, VA, D.C. area shed light on what species this is?

 

The next one I was completely floored when I saw it in my screen. A nice hemi in a strange brown color. I can only guess it came out from the higher end of the cliff.  I have never found one in the Potomac. Only in the Chesapeake Bay.  

 

Another thing I found, and need help with is this strange thing 

 

I was thinking stingray barb but  it isn’t tapered like one. The two holes in the center are interesting. It’s hard as a rock and sounds ceramic when I drop it. Any thoughts?

 This sand tiger my youngest son accidentally found 

 

He picked a chunk of clay and was about to chuck it into the river when he noticed the tip of the crown sticking out of the clay just as he leaned back to throw it. The curved cusplet is strange to me.

My oldest son found this one that I can’t seem to figure out 

 

Any ideas would be great. 
 

It was a great day! And, a tiring walk back up the hill.  I hope everyone enjoyed this report and thanks for any input on mystery items. Here’s some pictures of everything we found 

 

David and sons

 

My youngest son 

 

My oldest son 

 

And mine

 

My friend Paul hasn’t been able to get me a picture of their finds. 
Thanks again everyone.

[Al Dente]

1 hour ago, automech said:

Another thing I found, and need help with is this strange thing

It looks like Cylindracanthus, a piece of fish rostrum.

[cck]

Looks like you’re in an area where Paleocene and Miocene mix together… teeth from the younger exposures on the Potomac like the eastover often get stained by overlying ironstone deposits.. good mix of cool stuff!

[Darktooth]

It was nice of you to take out your friends for a hunt. You did well! ( Both in your findings and being a good friend!)