Euthema

Euthema is a fossil genus of minute land snails with an operculum, terrestrial gastropod molluscs in the family Diplommatinidae from the Cretaceous Burmese and Hkamti ambers.

Euthema
Temporal range: Albian-early Cenomanian
Holotype specimen of Euthema hesoana
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Architaenioglossa
Superfamily: Cyclophoroidea
Family: Diplommatinidae
Genus: †Euthema
Yu, Wang & Pan, 2018[1]
Species

See text

Synonyms
  • Paleodiplommatina Bullis et al., 2020
  • Xenostoma Bullis et al., 2020

Species

As of 2021, 8 species are placed into Euthema:[2]

  • † Euthema annae Balashov, 2020[3]
  • † Euthema dilatata (Yu, 2020), originally described as Truncatellina dilatatus[2]
  • † Euthema hesoana Asato & Hirano in Hirano et al., 2019
  • † Euthema lophopleura (Bullis, Herhold, Czekanski-Moir, Grimaldi & Rundell, 2020), originally described in the new genus Xenostoma[2]
  • † Euthema myanmarica Balashov, 2021 - species from Hkamti amber[2]
  • † Euthema naggsi Yu, Wang & Pan, 2018, type species
  • † Euthema spelomphalos (Bullis, Herhold, Czekanski-Moir, Grimaldi & Rundell, 2020), originally described in the new genus Paleodiplommatina[2]
  • † Euthema truncatellina Balashov, Perkovsky & Vasilenko, 2020[4]

References
  1. Yu, T.; Wang, B.; Pan, H. (2018). New terrestrial gastropods from mid-Cretaceous Burmese amber. Cretaceous Research. 90: 254-258.
  2. Balashov, Igor (March 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.
  3. Balashov, I. A. (2020). "An inventory of molluscs recorded from mid-Cretaceous Burmese amber, with the description of a land snail, Euthema annae sp. nov. (Caenogastropoda, Cyclophoroidea, Diplommatinidae)". Cretaceous Research. 118: Article 104676. doi:10.1016/j.cretres.2020.104676.
  4. 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.
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