This is a life size 3d digital model skull of a Dunkleosteus. OBJ, ZTL, PLY, FBX and STL files. The model is one piece, all the parts are combined

Dunkleosteus is an extinct genus of large arthrodire (jointed-neck) fish that existed during the Late Devonian period, about 382–358 million years ago. It was a pelagic fish inhabiting open waters, and one of the first apex predators of any ecosystem.[1]

Dunkleosteus consists of ten species, some of which are among the largest placoderms (plate-skinned) to have ever lived: D. terrelli, D. belgicus, D. denisoni, D. marsaisi, D. magnificus, D. missouriensis, D. newberryi, D. amblyodoratus, D. raveri, and D. tuderensis. The largest and best known species is D. terrelli. Since body shape is not known, various methods of estimation put the living total length of the largest known specimen between 4.1 to 10 m (13 to 33 ft) long and weigh around 1–4 t (1.1–4.4 short tons).[2] However, lengths of 5 metres (16 ft) or more are poorly supported and the most extensive analyses support smaller size estimates.[2][3]