Kingdom Animalia Subphylum Vertebrata Order Arthrodira Rank Genus | Phylum Chordata Class Placodermi Suborder Brachythoraci | |
 | ||
Similar Melanosteus, Belemnacanthus, Neophlyctaenius, Burrinjucosteus, Enseosteus | ||
Paramylostoma arcualis is an extinct selenosteid arthrodire placoderm from the Late Famennian Cleveland Shale of Late Devonian Ohio. It has a compressed, box-like head and thoracic armor, and large, rounded orbits. However, in comparison with other selenosteids, such as Selenosteus, P. arcualis' orbits were rather small. P. arcualis had smooth jaws that suggest the animal was durophagous.
References
Paramylostoma Wikipedia(Text) CC BY-SA