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...
- †Orthambonites †Orthambonites robusta †Orthonychia †Orthonychia aroostooki – type locality for species †Orthonychia compressa – type locality for species...
- quadrangularis [nl], a species of sal****er clams in the family Neilonellidae Orthonychia quadrangularis, a sea snail species of the extinct family Orthonychiidae...
- 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...
- †Orthograptus truncatus †Orthonota †Orthonota parvula †Orthonota undulata †Orthonychia †Orthonychia variablis – type locality for species †Orthopleura †Orthopleura...
- Miocene Pétervására Formation  Hungary A member of the family Turbinidae. Orthonychia yutaroi Sp. nov Valid Ebbestad in Nützel et al. Ordovician (Katian) Boda...
- Mazaev Early Permian  Russia A member of the family Orthonematidae. Orthonychia korotkovae Sp. nov Valid Mazaev Early Permian  Russia A member of the...
- species †Orthomylacris recta – type locality for species †Orthonychia †Orthonychia prosseri †Orthonychia unguiculata †Orthopora †Orthorhynchula †Orthorhynchula...
- †Orthonota parvula †Orthonota undulata †Orthonychia †Orthonychia concavum †Orthonychia coni**** †Orthonychia dentalium †Orthospirifer †Orthospirifer mesastrialis...