crepicephalina, extinct, genus, from, well, known, class, fossil, marine, arthropods, trilobites, lived, during, cambrian, period, which, lasted, from, approximately, million, years, temporal, range, cambrian, conservation, status, fossil, scientific, classifi. Crepicephalina 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 542 to 488 million years ago CrepicephalinaTemporal range Cambrian 1 Conservation status Fossil Scientific classification Kingdom Animalia Phylum Arthropoda Class Trilobita Order Ptychopariida Superfamily Ptychoparioidea Family Crepicephalidae Genus CrepicephalinaReferences edit a b Sepkoski Jack 2002 A compendium of fossil marine animal genera Trilobita entry Bulletins of American Paleontology 364 560 Archived from the original on 2006 09 05 Retrieved 2008 01 12 nbsp This Ptychopariida related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Crepicephalina amp oldid 916136559, wikipedia, wiki, book, books, library,
