Trilobita - Odontopleurida - Odontopleuridae
Alternative spelling: Acidaspis (Ceratocephala)
Synonyms: Bounyongia Etheridge and Mitchell 1917, Onchaspis Raymond 1925, Onychaspis Raymond 1925, Trapelocera Hawle and Corda 1847 [objective synonym]
Parent taxon: Miraspidinae according to D. L. Bruton 1967
See also Bruton 1966, Jell and Adrain 2002, Raymond 1916, Raymond 1925, Sepkoski 2002, Warburg 1925 and Whittington and Evitt 1953
Sister taxa: Miraspis, Whittingtonia
Subtaxa: Ceratocephala (Ceratocephalina) Ceratocephala depauperata Ceratocephala exigua Ceratocephala goniata Ceratocephala graffhami Ceratocephala impedita Ceratocephala laciniata Ceratocephala laticapitata Ceratocephala phalaenocephala Ceratocephala rarispina Ceratocephala triacantheis Ceratocephala vexilla Onchaspis confraga Onychaspis laticapitata Trapelocera bicuspis
Type: Ceratocephala goniata
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Devonian of Australia (4 collections), the Czech Republic (19), Germany (1), Italy (1), Morocco (5), the Russian Federation (3), Uzbekistan (1)
• Whitwellian of Canada (4: Northwest Territories)
• Silurian of Algeria (1), Australia (4), Canada (20: Northwest Territories), the Czech Republic (16), Greenland (2), Italy (1), Sweden (1), Ukraine (1), the United Kingdom (4), United States (12: Arkansas, Illinois, Iowa, Wisconsin)
• Chazyan of Canada (8: Northwest Territories)
• Whiterockian of Canada (1: Newfoundland and Labrador), United States (3: New York)
• Ordovician of Canada (1: Northwest Territories), Iran (2), Ireland (1), Norway (1), Sweden (2), the United Kingdom (7), United States (18: Nevada, Ohio, Oklahoma, Virginia)
Total: 144 collections including 162 occurrences
Specimen images are retrieved through the ePANDDA API.
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