Toebones and Earbones

[Shellseeker]

I was out again with a good friend. He has a huge garden and gifts me vegetables from time to time. Yesterday he gave a one of his earliest perfectly ripe Cantaloupes.  We had some for breakfast... sweet and delicious.

Once again, I saw @PODIGGER at the launch point. to discuss finds, but I left early. 

It was a day of few finds.  Some broken Megs, a few Hemis, but I like tigers,  and I did get a contortus.

Some turtle, which I do not normally keep, in the center a chunk of a Capybara m3,  an earbone which was my find of the day (I will separate to another fossil ID thread).  A medial phalanx. Not a lot of finds but more than enough to keep me happy.  Before I go to the fossil finds,  what is this ?  It feels like crumply rock,, but what is the source of the maze like pattern?

 

Up close photo of the Capybara molar..

I believe that this is one end of a turtle humerus:

 

Let's get an ID on this medial phalanx: It is L 35 x H 16 x W 15 mm.  Almost seems to  have the concave/convex end of a gator Vert,  but I have never seen any vert that looks like this.  Once again thinking sea turtle..

 

Thanks for the help.