| Basic info | Taxonomic history | Classification | Relationships |
| Morphology | Ecology and taphonomy | Age range and collections |
Eoptychia
Gastropoda - Pseudozygopleuridae
Taxonomy
Eoptychia was named by Longstaff (1933) [Sepkoski's age data: D Eife C Mosc Sepkoski's reference number: 362,797]. It is not extant. Its type is Loxonema sulcatum.
It was assigned to Pseudozygopleurinae by Horný (1955); to Eoptychiidae by Golikov and Starobogatov (1987); to Neotaenioglossa by Sepkoski (2002); and to Pseudozygopleuridae by Knight et al. (1960) and Bouchet et al. (2005).
It was assigned to Pseudozygopleurinae by Horný (1955); to Eoptychiidae by Golikov and Starobogatov (1987); to Neotaenioglossa by Sepkoski (2002); and to Pseudozygopleuridae by Knight et al. (1960) and Bouchet et al. (2005).
Synonymy list
| Year | Name and author |
|---|---|
| 1933 | Eoptychia Longstaff |
| 1955 | Eoptychia Horný |
| 1960 | Eoptychia Knight et al. p. 313 |
| 1987 | Eoptychia Golikov and Starobogatov p. 25 |
| 2002 | Eoptychia Sepkoski, Jr. |
| 2005 | Eoptychia Bouchet et al. pp. 25, 247 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Diagnosis
No diagnoses are available