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...
- Middle Ordovician from Bohemia Barrandicellopsis extenuata – synonym: Orthonychia extenuata Barrande in Perner, 1903 – probably belongs to genus Barrandicellopsis...
- quadrangularis [nl], a species of sal****er clams in the family Neilonellidae Orthonychia quadrangularis, a sea snail species of the extinct family Orthonychiidae...
- 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...
- †Orthograptus truncatus †Orthonota †Orthonota parvula †Orthonota undulata †Orthonychia †Orthonychia variablis – type locality for species †Orthopleura †Orthopleura...
- elegantula †Orthobairdia †Orthobairdia cestriensis †Orthonychia †Orthonychia compressum †Orthonychia ungula †Orthostrop****a †Orthostrop****a clairensis...
- †Orthonema †Orthonema striatonodosum – type locality for species †Orthonychia †Orthonychia striatulus †Orthotetes †Orthotetes kaskaskiensis †Orthotetes keo****...
- †Orthonota †Orthonota parvula – tentative report †Orthonota undulata †Orthonychia †Orthonychia parva †Orthotetes †Orthotheca †Orthotheca shriveri – type locality...