Overall length 2 3/8 inch, body only measures approximately 1 1/8". This trilobite has been prepped using air scribes and micro-abrasive. The spines are natural but repairs have been made. See detailed pictures (can see lint as well). Trilobite has been mounted to a walnut base and includes an acrylic cover. Base measures 6 3/4" x 4 3/4". Box is 4 1/4" high. Feel free to email with any questions. Trilobite is from the lower Devonian of Morocco.