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Palaeostylus delpeyae
Taxonomy
Paleostylus delpeyae was named by Batten (1985). Its type specimen is AMNH 42839, a shell, and it is a 3D body fossil. Its type locality is H.S. Lee Mine No. 8, Kinta Valley near Kampar, which is in a Kungurian shallow subtidal limestone in the H.S. Lee Formation of Malaysia.
It was recombined as Palaeostylus delpeyae by Wagner (2023).
It was recombined as Palaeostylus delpeyae by Wagner (2023).
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.
†Palaeostylus delpeyae Batten 1985
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. L. Batten 1985 | High-spired forms with axial growth which may become progressively slower relative to whorl expansion causing the shell to be pupaeform. The whorls are flattened to somewhat convex with a sharply defined spiral rib at the base ofthe outer whorl face which forms the boundary of the flattened base. Whorls embrace just below this spiral rib. There are three spiral threads evenly spaced on the outer whorl face. Collabral ribs occupy the upper half of the whorl and form interference nodes at the intersection of the upper two spiral threads. The third spiral thread is centrally located on the lower half of the whorl face. Cryptomphalus. |
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 2 | 10.5 | 6.00 | 18.5 | 12.2 | 8.84 | |
| shell diameter | 2 | 5.00 | - | - | 5.00 | - |
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| Source: c = class | |||||
| Reference: Kiessling 2004 | |||||
Age range: base of the Kungurian to the top of the Capitanian or 283.30000 to 259.51000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Kungurian | Malaysia (Perak) | Palaeostylus delpeyae (type locality: 62131) | |
| Capitanian | Cambodia | Palaeostylus pupoides (107274 107276 107282) |