Crepicephalus

Crepicephalus Temporal range: Dresbachian[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Trilobita
Order:	Ptychopariida
Superfamily:	Crepicephalacea
Family:	Crepicephalidae
Genus:	Crepicephalus Owen, 1852
Species
C. iowensis (Owen, 1952) (type) = Dikelocephalus iowensis
Synonyms
Crepiceaphlus, Crepicepalus, Crepicocephalus, Sneedvillia

Crepicephalus is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived from 501 to 490 million years ago during the Dresbachian faunal stage of the late Cambrian Period.^[1]

Reassigned species

Some species, previously described as Crepicephalus have since been moved to other genera.^[2][3]

• C. angusta = Kochaspis angusta
• C. convexus = Crepicephalina convexa
• C. liliana = Kochaspis liliana
• C. nitidus = Dunderbergia nitida
• C. quadrans = Ehmaniella quadrans
• C. unca = Uncaspis unca

References

1. Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Trilobita entry)". Bulletins of American Paleontology. 363: 1–560. Archived from the original on 2006-09-05. Retrieved 2008-01-12.
2. Moore, R.C. (1959). Arthropoda I - Arthropoda General Features, Proarthropoda, Euarthropoda General Features, Trilobitomorpha. Treatise on Invertebrate Paleontology. Vol. Part O. Boulder, Colorado/Lawrence, Kansas: Geological Society of America/University of Kansas Press. pp. O249–O250. ISBN 0-8137-3015-5.
3. Palmer, Allison R. (1954). "An Appraisal of The Great Basin Trilobites described before 1900". Geological Survey Professional Paper. Vol. 264-D.