image/svg+xmlOpencliparttrilobite2007-08-23T03:41:35sketch of a trilobite from the book "Sea-weed, shells and fossils" by Peter Gray A.B.S. and B.B. Woodward from 1886https://openclipart.org/detail/4950/trilobite-by-johnny_automaticjohnny_automaticanimalarthropodexternalsourcefossilshelltrilobite