X-Large authentic, high quality 2" Asaphiscus wheeleri fossil trilobite molt on an approximate 7" tall x 5" x 1.5" deep and 2.5 lb. shale piece.
Stand and information card included.
Trilobite from the middle Cambrian Period (505 million years ago) Wheeler Shale Formation found in the Antelope Springs, House Range, Utah West Desert.
Trilobites (meaning "Three-Lobed"), first appeared in our oceans about 550 million years ago before going extinct around 240 Million Years Ago.