This is a BEAUTIFUL scan. And it's hard to express just how massive this thing is! My slicer claims it used about 175g of filament with 25% infill and all the support; my cleaned-up print weighs 141g.
Being a natural object it's challenging to print, but totally doable. Support is needed, of course, and I recommend minimizing the gap between support and object, at least in the lower segment, to get it started well. Cleanup is a little more challenging, but (I've found) it has a greater chance for success.
Pictured with a very happy amateur paleontologist.
Proto-Pasta Matte PLA
Supports are required. May have to print at an angle to fit in the bed, it's huge.