Metamorphic petrology, Jaw, Metamorphic rocks, Paleontological Notes, Biology, Quartzite, Connective tissues, Tooth enamel, Trace fossils, Petrology, Mouth, Bones, Paleobiology, Facial bones, Geology, Digestive system, Teeth, Earth sciences, Anatomy, Paleontology, Fossils, Physical sciences, Skull, Biological sciences, Body tissues, Taphonomy