About this 3D model
This model is from a real 3D scanned triceratops skull. It does need support since the back is mostly empty. Printing it in the vertical position (shown in the last picture) allows for a nice surface finish and easy removal of the support material. Here is a link to the bone colored filament I use for prints like this: https://amzn.to/3UYTtHP STL taken from https://www.thingiverse.com/thing:2445545 Originally 3D scanned by ScanTheWorld