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Temporal range: Late Ordovician-Late Devonian
~449–383 Ma
Plovdiv Museum of Natural History - Fossil exhibition - Cyphaspis.jpg
Cyphaspis sp. from Devonian Morocoo
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Trilobita
Order: Proetida
Family: Aulacopleuridae
Genus: Cyphaspis
Burmeister 1843
Type species
Phacops ceratophthalma
Goldfuss 1843

See text

Cyphaspis sp. from the Tafilalet, Morocco

Cyphaspis is a genus of small trilobite that lived from the Late Ordovician to the Late Devonian. Fossils have been found in marine strata in what is now Europe, Africa and North America. Various species had a compact body, and a large, bulbous glabellum. Many species had long spines arranged similarly to closely related genera, such as Otarian, Otarionella, Chamaeleoaspis, and Namuropyge.


The following species in the genus Cyphaspis have been described:

  • C. anticostiensis
  • C. bellula
  • C. bowingensis
  • C. burmeisteri
  • C. ceratophthalma Goldfuss 1843 (type)
  • C. ceratophthalmoides
  • C. clintoni
  • C. coelebs
  • C. convexa
  • C. craspedota
  • C. dereimsi
  • C. diadema
  • C. gaultieri
  • C. globosus[1]
  • C. hoepfneri
  • C. hudsonica
  • C. hybrida
  • C. hydrocephala
  • C. matulina
  • C. megalops
  • C. minuscula
  • C. partim
  • C. parvula
  • C. planifrons
  • C. punctillosa
  • C. raripustulosus
  • C. sibirica Schmidt 1886
  • C. spinulocervix
  • C. spryi
  • C. stephanophora
  • C. stigmatopthalmus
  • C. trentonensis
  • C. trigoda
  • C. yassensis


Fossils of Cyphaspis have been found in:[1]


Colombia (Floresta Formation, Altiplano Cundiboyacense), the Czech Republic, Morocco, United States (Alaska, Iowa, Oklahoma), and Uzbekistan


Canada (Northwest Territories, Nunavut, Ontario), the United Kingdom, and the United States (Indiana, New York, Tennessee)


Sweden, and the United States (Illinois, Kentucky, Missouri)


Further reading[edit]

External links[edit]