Mummaspis

Mummaspis is an extinct genus from a well-known class of fossil marine arthropods, the trilobites, with five known species. 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.

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.

M. occidens was collected in the Lower Cambrian of Alberta, Canada.
M. truncatooculatus occurs in the Lower Cambrian of Alberta, Canada.
M. oblisooculatus is found in the Lower Cambrian of Alberta, Canada.
M. muralensis is present in the Lower Cambrian of Alberta, Canada.
M. macer was extracted from the Lower Cambrian of Pennsylvania (Kinzers Formation, 2 miles North of York, from Fruitville, 3 miles North of Lancaster, and ½ mile South of East-Petersburg.