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Ptychosyca
Taxonomy
Ptychosyca was named by Gabb (1876) [Sepkoski's age data: K Camp-u K Maes Sepkoski's reference number: 909]. Its type is Ptychosyca inornata.
It was assigned to Pseudolivinae by Sohl (1964); and to Neogastropoda by Sepkoski (2002).
It was assigned to Pseudolivinae by Sohl (1964); and to Neogastropoda by Sepkoski (2002).
Species
P. inornata (type species)
Entered
by J. Sepkoski on 2003-01-23; modified by J. Marcot on 2025-04-03
Synonymy list
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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
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Hendy et al. 2009, Kiessling 2004 | |||||
Age range: Maastrichtian or 72.20000 to 66.00000 Ma
Collections (7 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Campanian - Early/Lower Maastrichtian | USA (Tennessee) | P. inornata (7515) | |
| Early/Lower Maastrichtian | USA (Georgia) | P. inornata (4277) | |
| Early/Lower Maastrichtian | USA (Alabama) | P. inornata (4247) | |
| Early/Lower Maastrichtian | USA (Mississippi) | P. inornata (7590 7592 7602) | |
| Maastrichtian | USA (Tennessee) | P. inornata (205445) |