| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Trissexodontidae
Taxonomy
Trissexodontidae was named by Nordsieck (1987). It is extant.
It was assigned to Helicoidea by Salvador et al. (2015), Bouchet et al. (2017).
It was assigned to Helicoidea by Salvador et al. (2015), Bouchet et al. (2017).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1987 | Trissexodontidae Nordsieck |
| 2015 | Trissexodontidae Salvador et al. |
| 2017 | Trissexodontidae Bouchet et al. p. 368 |
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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.
Fm. Trissexodontidae Nordsieck 1987
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G. Praeoestophorella Pfeffer 1930
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Praeoestophorella phacodes Thomae 1845
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Invalid names: Caracollina phacodes Rasser 2013 [synonym], Oestophora phacodes Ehrat and Jooss 1921 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Reference: Kiessling 2004 | |||||
Age range
Maximum range based only on fossils: Langhian or 15.98000 to 13.82000 Ma
Minimum age of oldest fossil (stem group age): 13.82 Ma
Minimum age of oldest fossil (stem group age): 13.82 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Langhian | Germany | Praeoestophorella phacodes (231120) | |
| MN 5 | Germany (Baden-Württemberg) | Praeoestophorella phacodes (172950 172951 172953) |