Helicina cokevillensis Yen, 1954
Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.
Identity & source status
- Scientific name
- Helicina cokevillensis Yen, 1954
- Name authority
- Yen, 1954
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Mollusca
- Class
- Gastropoda
- Order
- Cycloneritida
- Family
- Helicinidae
- Genus
- Helicina
- Extinction status
- Recorded extinct
Source habitat flags: Marine: no · Freshwater: no · Terrestrial: yes. These do not form a complete habitat description.
Classification family tree
Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.
- domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
- kingdomAnimalia
- phylumMollusca
- classGastropoda Cuvier, 1795
- subclassNeritimorpha Koken, 1896
- orderCycloneritida Frýda, 1998
- superfamilyHelicinoidea A. Férussac, 1822
- familyHelicinidae A. Férussac, 1822
- subfamilyHelicininae A. Férussac, 1822
- genusHelicina Lamarck, 1799
- speciesHelicina cokevillensis Yen, 1954
Close classified relatives
These entries share the source’s genus, Helicina. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Helicina amoena L. Pfeiffer, 1849 | HelicinidaeMollusca | Accepted speciesRecorded extant |
| Helicina arenicola Morelet, 1849 | HelicinidaeMollusca | Accepted speciesRecorded extant |
| Helicina beatrix Angas, 1879 | HelicinidaeMollusca | Accepted speciesRecorded extant |
| Helicina besckei L. Pfeiffer, 1849 | HelicinidaeMollusca | Accepted speciesRecorded extant |
| Helicina bocourti Crosse & P. Fischer, 1869 | HelicinidaeMollusca | Accepted speciesRecorded extant |
| Helicina chiquitica (Richling, 2001) | HelicinidaeMollusca | Accepted speciesExtinction status not supplied |
| Helicina columbiana R. A. Philippi, 1847 | HelicinidaeMollusca | Accepted speciesRecorded extant |
| Helicina conus A. J. Wagner, 1910 | HelicinidaeMollusca | Accepted speciesRecorded extant |
| Helicina cordillerae L. Pfeiffer, 1857 | HelicinidaeMollusca | Accepted speciesRecorded extant |
| Helicina declivis L. Pfeiffer & Gundlach, 1860 | HelicinidaeMollusca | Accepted speciesRecorded extant |
| Helicina decorosa A. J. Wagner, 1910 | HelicinidaeMollusca | Accepted speciesRecorded extant |
| Helicina delicatula Shuttleworth, 1852 | HelicinidaeMollusca | Accepted speciesRecorded extant |
Source literature & publication evidence
References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.
- Yen, T.-C. (1954). Nonmarine Mollusks of Late Cretaceous Age From Wyoming, Utah and Colorado. Part 1: A fauna from western Wyoming. United States Geological Survey Professional Paper, 254–B: 45–59. https://doi.org/10.3133/pp254b Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references
Origins, evidence & remaining research
Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.
Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record. A suitable sourced image remains to be added.
Dataset citation & attribution
This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11
Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.
Stable key: col:3K7PX. Classification follows source parent identifiers. English common names may vary by region.