Fort Worth formation echinoids,ammonites

[Shaun-DFW Fossils]

I went to my favorite Fort Worth formation spot near my house (Johnson County) and came home with a nice Christmas present to myself, 6 macraster echinoids, 2 of which are nearly perfect and are now amongst the best I have. They’re also huge, I am naming one Absolute Unit and the other The Rock. Also a rough looking holaster and a bunch of smaller mortoniceras ammonites. Check out the curvy fold in one of them. Poor dude went flaccid right when he hit the bottom of the ocean. Lol..I decided to flip a huge rock I’ve walked by many times (natural for me as a snake chaser) and I’m glad I did, I found a robust 2 inch wide x 8 inch diameter mortoniceras attached within the rock. It’s beyond my ability to easily free it, but I will get it done with some help. Nice calcite on the outside where I broke away some matrix. 
one of the morts is a mess (the one with the green algae on one side), it’s beautiful but I’ll have to make a decision about leaving it as is or cutting it to the point where it’s complete on both sides. 

Edited December 23, 2023 by Shaun-DFW Fossils

[Lone Hunter]

My finds keep getting smaller and yours keep getting more monstrous. The Inoceramids I posted paled in comparison to yours, hell everything does.     And that wavy ammo rocks!

Edited December 23, 2023 by Lone Hunter

[Balance]

Is the “wavy” from the growth as an non typical or from the cast getting morphed from pressure?

 

Merry Christmas indeed. Lol

 

Jp

[Shaun-DFW Fossils]

44 minutes ago, Balance said:

Is the “wavy” from the growth as an non typical or from the cast getting morphed from pressure?

 

Merry Christmas indeed. Lol

 

Jp

It’s a good question and I’m not sure what is most likely! I have usually assumed most deformities occur prior to fossilization but I’m sure there are plenty of circumstances that result in bending/folding afterward too

[sixgill pete]

Great finds, thanks for sharing. I always enjoy seeing the echinoid bounty you have in Texas.