This is a vertebra (from Iguanodon, I think), reconstructed using photogrammetry. I’m testing RAW vs JPG, and this model was produced using RAW files.
Photogrammetry set up: https://peterfalkingham.com/2020/04/25/extending-my-automated-arduino-photogrammetry-setup-to-include-a-dslr/
Discussion of RAW vs JPG: https://peterfalkingham.com/2020/05/22/photogrammetry-does-shooting-raw-or-jpg-make-a-difference/
Model made with JPG images: https://sketchfab.com/3d-models/ammonite-jpg-56ce228da47c453fa7e4770abfc7a974