Euthema truncatellina
Euthema truncatellina is a fossil species of minute land snails with an operculum, terrestrial gastropod molluscs in the family Diplommatinidae, described from the Cretaceous Burmese amber.[1][2][3][4]
| Euthema truncatellina Temporal range: | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Architaenioglossa |
| Superfamily: | Cyclophoroidea |
| Family: | Diplommatinidae |
| Genus: | †Euthema |
| Species: | †E. truncatellina |
| Binomial name | |
| †Euthema truncatellina Balashov, Perkovsky & Vasilenko, 2020[1] | |
Description
Shell almost cylindrical, comprising 6.5 moderately convex whorls, ribbed, with weak constriction. Aperture circular. Umbilicus narrow. Periumbilical keel absent. Height of shell 1.7 mm, width of shell 0.9 mm.[1][2]
Etymology
The species is named after the extant genus Truncatellina (Stylommatophora), which has a similar shell, acknowledging the convergence in the different lineages of gastropods on land.[1]
References
- Balashov, I.; Perkovsky, E.; Vasilenko, D. (2020). "A mid-Cretaceous land snail Euthema truncatellina sp. nov. (Caenogastropoda, Cyclophoroidea, Diplommatinidae) from Burmese amber". Zootaxa. 4858 (2): 295–300. doi:10.11646/zootaxa.4858.2.11. PMID 33056238.
- Balashov, I. (2021). "The first records of mollusks from mid-Cretaceous Hkamti amber (Myanmar), with the description of a land snail, Euthema myanmarica n. sp. (Caenogastropoda, Cyclophoroidea, Diplommatinidae)". Journal of Paleontology: 1–10. doi:10.1017/jpa.2021.26.
- MolluscaBase - Euthema truncatellina
- ZooBank - Euthema truncatellina
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