Trilobita - Olenida - Eulomidae
Alternative spelling: Ptychoparia (Euloma)
Synonym: Calymenopsis Bergeron 1895
Parent taxon: Eulomidae according to P. A. Jell and J. M. Adrain 2002
See also Sepkoski 2002 and Walcott 1884
Sister taxa: Acrocephalaspina, Altaiaspis, Amzasskiella, Crucicephalus, Dolgeuloma, Duplora, Eulominae, Iveria, Karataspis, Ketyna, Kujandaspis, Limpeina, Loparella, Lopeuloma, Natmus, Pareuloma, Probilacunaspis, Proteuloma, Pseudoacrocephalites, Stigmatoa
Subtaxa: Euloma (Archaeuloma) Euloma (Plecteuloma) Euloma granulatum Ptychoparia (Euloma) affinis Ptychoparia (Euloma) dissimilis
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Arenig of France (1 collection), Morocco (1), Sweden (3)
• Klabava of the Czech Republic (2)
• Ordovician of France (1), Morocco (3), Norway (3), the Russian Federation (1), Sweden (4)
• Tremadoc of Canada (1: Newfoundland and Labrador), China (9), France (7), Iran (1), Norway (1), the Russian Federation (1), Spain (2), Sweden (3), the United Kingdom (1), United States (1: Montana)
• Taoyuanian of China (2)
• Cambrian to Ordovician of the Russian Federation (1)
• Cambrian of Australia (1), China (5), the Russian Federation (3)
Total: 58 collections including 59 occurrences
Specimen images are retrieved through the ePANDDA API.
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