Definition of Orthonychia. Meaning of Orthonychia. Synonyms of Orthonychia

- species in the genus Orthonychia, but an analysis of this variability has not been done yet (2008). Genus Orthonychia Hall, 1843 Orthonychia acuta Roemer, 1856...
- Middle Ordovician from Bohemia Barrandicellopsis extenuata – synonym: Orthonychia extenuata Barrande in Perner, 1903 – probably belongs to genus Barrandicellopsis...
- report †Orthonychia †Orthonychia chesterense – tentative report †Orthonychia herzeri †Orthonychia infabricatus – type locality for species †Orthonychia parva...
- species †Orthomylacris recta – type locality for species †Orthonychia †Orthonychia prosseri †Orthonychia unguiculata †Orthopora †Orthorhynchula †Orthorhynchula...
- †Orthonota †Orthonota parvula – tentative report †Orthonota undulata †Orthonychia †Orthonychia parva †Orthotetes †Orthotheca †Orthotheca shriveri – type locality...
- †Orthambonites †Orthambonites robusta †Orthonychia †Orthonychia aroostooki – type locality for species †Orthonychia compressa – type locality for species...
- type locality for species †Orthonychia †Orthonychia jeffersonensis – type locality for species †Orthonychia parva †Orthonychia ungula – type locality for...
- †Orthonema †Orthonema striatonodosum – type locality for species †Orthonychia †Orthonychia striatulus †Orthotetes †Orthotetes kaskaskiensis †Orthotetes keo****...
- (Euthyrachis) indianense Dock Street Clay Member. A platyceratid. P. (Orthonychia) variabilis Upper limestone unit. A platyceratid. Pseudozygopleuridae...
- elegantula †Orthobairdia †Orthobairdia cestriensis †Orthonychia †Orthonychia compressum †Orthonychia ungula †Orthostrop****a †Orthostrop****a clairensis...