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Peruvispira coatesi
Taxonomy
Neilsonia coatesi was named by Peel (2016). Its type specimen is BGS YPF 4664a, a shell, and it is a 3D body fossil. Its type locality is Pot Bank Quarry Locality 3, Congleton Edge, which is in an Alportian carbonate mudstone in the Morridge Formation of the United Kingdom.
It was recombined as Peruvispira coatesi by Karapunar and Nützel (2022).
It was recombined as Peruvispira coatesi by Karapunar and Nützel (2022).
Synonymy list
| Year | Name and author |
|---|---|
| 2016 | Neilsonia coatesi Peel pp. 424 - 425 fig. 10A–F |
| 2022 | Peruvispira coatesi Karapunar and Nützel p. 76 |
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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.
†Peruvispira coatesi Peel 2016
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. S. Peel 2016 | Species of Neilsonia with a row of comarginally elongate tubercles below the selenizone, at the junction between the outer whorl face and the base; tubercles not visible in the spire.
Species with about seven whorls. Protoconch seemingly smooth and of about two whorls (Fig. 10A). Teleoconch sub-trochiform, with an incremental angle of almost 60° and spire about one-third of total height (Fig. 10G). Upper whorl surface shouldered immediately below the deep suture, becoming concave and almost horizontal as the prominent cord forming the upper edge of the selenizone is approached. A similar cord forming the shell periphery marks the lower edge of selenizone. A concave alveozone lies between the selenizone and an angulation marking the junction of the outer whorl surface and the base, the latter curving uniformly into the miniscule umbilicus. Outer lip sinuate, with prosocline growth lines on the upper whorl surface and shallow prosocyrt growth lines on the base; depth of slit unknown. Selenizone concave between bordering cords and ornamented with numerous concave lunulae. A row of comarginal, radially elongate, tubercles on the sub-sutural shoulder reflects periodic thickening of the growing margin. Similar tubercles occur on the angulation between the alveozone and the base. Whorl embracement is well below the selenizone but the lower row of tubercles is not visible in the spire. |
Measurements
No measurements are available
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| Source: f = family, o = order | |||||
| References: Bambach et al. 2007, Hendy 2009 | |||||
Age range: base of the Chokierian to the top of the Alportian or 323.70000 to 321.80000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Chokierian | United Kingdom (England) | Neilsonia coatesi (182900 182903) | |
| Alportian | United Kingdom (England) | Neilsonia coatesi (type locality: 182841) |