Morphology Comparative Anatomy Skeletal Structure Human Anatomy Vertebrate Anatomy Skeletal Anatomy Skeletal System Dinosaur Anatomy Bone Structure Vocal Anatomy Dental Anatomy Nervous System Teeth Vertebrates Dentition Skin Skeletal Analysis Muscles Reptiles Organ Systems Skull Anatomy Skin Structures Skin Structure Arthropod Anatomy Necropsy Skull Fossils Internal Anatomy Feathers Circulatory System Animal Anatomy Dentistry Skull Structure Fish Anatomy Claws Respiratory System Skeletal Structures Dinosaur Physiology Sensory Systems Nervous System Anatomy Body Size Body Proportions Physiology Inner Ear Eye Structure Blood Vessels Reproductive Anatomy Fetus Symmetry Vertebral Column Vertebrae Limb adaptation Anatomical Inaccuracies Rat Anatomy Bones Body Parts Necropsy Procedures Muscle Structure CT Scanning Evolution Bone Density Skull Features Facial Reconstruction Hearing Systems Ear Jaw Blood-Brain Barrier Skin Membrane Dental Implants Reproductive System Dental Structures Exoskeleton Tentacles Jaw Structure Olfactory System Skeletal Morphology Connective Tissues Sensory Structures Ear Anatomy Lymphatic System Marine Biology Endocrine System Soft Tissues Brain Structures Chewing Process Sensory Biology Invertebrates Knee Internal Organs Muscle Physiology Vascular Structures Functional Anatomy Cell Biology Digestive System Whale Anatomy Chelicerates Reptilian Anatomy Teeth Structure Skull Morphology Craniofacial Anatomy
Growth‑ring histology plus spinal fusion evidence indicate the specimen was about 20 years old and fully mature.