Overall length 1 7/8 inch, body only measures approximately 1 inch. This trilobite has been prepped using air scribes and micro-abrasive. The spines (and rest of trilobite) are natural but repairs have been made. See detailed pictures for quality. Trilobite has been mounted to a walnut base and includes an acrylic cover. Base measures 4 7/8" x 4 7/8". Box is 4 1/4" high. Feel free to email with any questions. Trilobite is from the middle to late Devonian of Morocco.