quadragnostus, extinct, genus, from, well, known, class, fossil, marine, arthropods, trilobites, lived, during, cambrian, period, which, lasted, from, approximately, million, years, temporal, range, cambrian, scientific, classification, kingdom, animalia, phyl. Quadragnostus is an extinct genus from a well known class of fossil marine arthropods the trilobites It lived during the Cambrian Period 1 which lasted from approximately 539 to 485 million years ago QuadragnostusTemporal range Cambrian 1 Scientific classification Kingdom Animalia Phylum Arthropoda Class Trilobita Order Agnostida Family Metagnostidae Genus QuadragnostusHowell 1966References edit a b Sepkoski Jack 2002 A compendium of fossil marine animal genera Trilobita entry Bulletins of American Paleontology 364 560 nbsp This Agnostida related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Quadragnostus amp oldid 1085582377, wikipedia, wiki, book, books, library,
