Here is the fossil Ceraurus pleurexanthemus trilobite from the Ordovician of Ontario, Canada. Its a decent specimen. 

Name: Ceraurus pleurexanthemus 

Locality: Cobourg fm, Ontario, Canada

Fossil Size: trilobite measures 3.7 cm long on matrix measuring 9 x 11 cm 

Age: Ordovician

Feel free to ask questions!

Returns accepted within 7 days of arrival for refund of purchase price but not refund of shipping. Returns have to be sent also via priority mail with delivery confirmation and insurance.

International buyers: I will ship to most countries, via priority mail. Italy and India, please contact me before purchasing.