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Ptychomaletoechia
Taxonomy
Ptychomaletoechia was named by Sartenaer (1961).
It was assigned to Trigonirhynchiidae by Cooper and Dutro (1982); to Rostricellulinae by Jin and Chatterton (1997); to Hemitoechiinae by Williams et al. (2002); and to Rhynchonellida by Sepkoski (2002).
It was assigned to Trigonirhynchiidae by Cooper and Dutro (1982); to Rostricellulinae by Jin and Chatterton (1997); to Hemitoechiinae by Williams et al. (2002); and to Rhynchonellida by Sepkoski (2002).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1961 | Ptychomaletoechia Sartenaer |
| 1982 | Ptychomalotoechia Cooper and Dutro p. 70 |
| 1997 | Ptychomaletoechia Jin and Chatterton |
| 2002 | Ptychomaletoechia Sepkoski |
| 2002 | Ptychomaletoechia Williams et al. p. 1073 |
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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