THIS REDDISH-BROWN TRILOBITE IS FROM THE ATLAS MOUNTAIN AREA IN MOROCCO. APPROXIMATELY 400 MILLION YEARS OLD (DEVONIAN), IT STILL SHOWS GOOD DETAIL OF THE TRILOBITE BODY INCLUDING THE EYES. A WONDERFUL TOOL FOR THE CHILDREN'S EDUCATION ABOUT THE PRIMEVAL WORLD. GREAT FOR SHOW & TELL AT SCHOOL. LENGTH SIZE IS 4" AND IT WEIGHS 12 OUNCES. IN MATRIX. .