{{Taxobox | fossil_range = late Lower Cambrian (Lower ''Olenellus-zone'') {{Geological range|524|518.5}} | image = Mummaspis macer USNM PAL 60092.jpg | image_caption = ''Mummaspis macer'', (Type specimen), Fruitville, Lancaster County, Pennsylvania. U.S. National Museum, Catalogue No. 60092 | regnum = Animalia | phylum = Arthropoda | classis = Trilobita | ordo = Redlichiida | subordo = Olenellina | superfamilia = Olenelloidea | familia = Laudoniidae | subfamilia = Laudoniinae | genus = '''''Mummaspis''''' | genus_authority = Fritz, 1992 | subdivision_ranks = Species | subdivision = * ''M. occidens'' <small>(Walcott, 1913)</small>, (type), synonyms ''Wanneria occidens'', ''Esmeraldina occidens''<ref name='Lieberman 1999' /> * ''M. truncatooculatus'' <small>(Fritz, 1992)</small>, synonym ''Olenellus truncatooculatus''<ref name='Lieberman 1999' /> * ''M. oblisooculatus'' <small>Fritz, 1992</small><ref name='Lieberman 1999' /> * ''M. muralensis'' <small>(Fritz, 1992)</small>, synonym ''Olenellus muralensis''<ref name='Lieberman 1999' /> * ''M. macer'' <small>(Walcott, 1913)</small>, synonyms ''Holmia macer'', ''Esmeraldina macer'', ''Wanneria macer''<ref name='Lieberman 1999' />

}}

'''''Mummaspis''''' is an extinct genus from a well-known class of fossil marine arthropods, the trilobites, with five known species.<ref name='Lieberman 1999'>{{cite journal|last1= Lieberman|first1=B. S.|year=1999|title=Systematic Revision of the Olenelloidea (Trilobita, Cambrian)|journal=Bulletin of the Peabody Museum of Natural History|volume=45|url=http://archive.peabody.yale.edu/scipubs/bulletins_postillas/ypmB45_1999.pdf}}</ref> It lived during the early part of the Botomian stage, which lasted from approximately 524 to 518.5 million years ago. This faunal stage was part of the Cambrian Period.

left|thumb|Headshield of ''Mummaspis occidens'', type specimen. U.S. National Museum, Catalogue No. 60080

== Taxonomy == ''Mummaspis'' is the genus closest to the common ancestor of ''Laudonia'', the Biceratopsinae and the Bristoliinae. Including the species of ''Fritzolenellus'', this clade is the sister group of ''Wanneria walcottana'' and the Holmiidae.<ref name='Lieberman 1998'>{{cite journal|last=Lieberman|first=B.S.|year=1998|title=Cladistic Analysis of the Early Cambrian Olenelloid Trilobites|journal=Journal of Paleontology|volume=72|issue=1|pages=59–78|doi=10.1017/S0022336000024021|bibcode=1998JPal...72...59L |s2cid=86307339 |url=http://invitestock.free.fr/Cambrien/pdf/Spanish%20fauna/Cladistic%20Analysis%20of%20the%20Early%20Cambrian%20Olenelloid%20Trilobites.pdf}}</ref>

== Distribution == * ''M. occidens'' was collected in the Lower Cambrian (lower ''Olenellus''-zone<!--- As Mummaspis co-occur with ''Nevadia'' and ''Nevadella'', this assignment may not be correct, and would perhaps better be assigned to the ''Nevadella''-zone --->) of Alberta, Canada (Mural Formation, in the talus slope immediately west of Mumm Peak, and from the middle Mural Formation, 125&nbsp;m above the base of that formation, just north of the Mount Robson Provincial Park boundary). * ''M. truncatooculatus'' occurs in the Lower Cambrian (lower ''Olenellus''-zone) of Alberta, Canada (Mural Formation, in the talus slope immediately west of Mumm Peak, and from the middle Mural Formation, 125&nbsp;m above the base of that formation, just north of the Mount Robson Provincial Park boundary). * ''M. oblisooculatus'' is found in the Lower Cambrian (Lower ''Olenellus''-zone) of Alberta, Canada (Mural Formation, in the talus slope immediately west of Mumm Peak, and from the middle Mural Formation, 125&nbsp;m above the base of that formation, just north of the Mount Robson Provincial Park boundary). * ''M. muralensis'' is present in the Lower Cambrian (Lower ''Olenellus''-zone) of Alberta, Canada (Mural Formation, in the talus slope immediately west of Mumm Peak, and from the middle Mural Formation, 125&nbsp;m above the base of that formation, just north of the Mount Robson Provincial Park boundary). * ''M. macer'' was extracted from the Lower Cambrian of Pennsylvania (middle Upper ''Olenellus''-zone) (Kinzers Formation, 2 miles North of York, from Fruitville, 3 miles North of Lancaster, and ½ mile South of East-Petersburg.<ref name='Lieberman 1999' />

== References == {{Reflist}}

{{Taxonbar|from=Q6935427}}

Category:Cambrian trilobites Category:Cambrian trilobites of North America Category:Paleozoic life of Alberta Category:Olenelloidea Category:Cambrian genus extinctions Category:Redlichiida genera

{{Redlichiida-stub}}