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Anomphalus helicoides
Taxonomy
Rotella helicoides was named by Münster (1841). It is a 3D body fossil. Its type locality is St. Cassian (Munster coll), which is in a Julian carbonate limestone in the Cassian Formation of Italy.
It was recombined as Umbonium helicoides by Kittl (1891); it was recombined as Anomphalus helicoides by Haas (1953).
It was recombined as Umbonium helicoides by Kittl (1891); it was recombined as Anomphalus helicoides by Haas (1953).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1841 | Euomphalus pygmaeus Münster p. 104 figs. Pl 11, fig 1 |
| 1841 | Rotella helicoides Münster p. 117 figs. Pl 13, fig 5 |
| 1843 | Euomphalus reconditus Klipstein p. 201 figs. Pl 14, fig 14 |
| 1843 | Euomphalus sphaeroidicus Klipstein p. 201 figs. Pl 14, fig 11 |
| 1843 | Euomphalus complanatus Klipstein p. 202 figs. Pl 14, fig 12 |
| 1843 | Euomphalus helicoides Klipstein p. 202 figs. Pl 14, fig 13 |
| 1891 | Umbonium helicoides Kittl p. 242 figs. Pl 6, figs 1-3 |
| 1953 | Anomphalus helicoides Haas p. 78 figs. Pl 5, figs 4-6,9,10,13,16,17 |
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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.
†Anomphalus helicoides Münster 1841
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Invalid names: Euomphalus complanatus Klipstein 1843 [synonym], Euomphalus helicoides Klipstein 1843 [synonym], Euomphalus pygmaeus Münster 1841 [synonym], Euomphalus reconditus Klipstein 1843 [synonym], Euomphalus sphaeroidicus Klipstein 1843 [synonym]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 6 | 1.42 | 0.670 | 5.50 | 0.895 | 2.14 |
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| Source: f = family, c = class | |||||
| References: Bandel et al. 2002, Kiessling 2004 | |||||
Age range: base of the Anisian to the top of the Hettangian or 247.20000 to 199.30000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Anisian | Austria (Innsbruck) | Umbonium helicoides (202275) | |
| Julian | Italy | Rotella helicoides, Euomphalus pygmaeus (137429) Umbonium helicoides (144631) | |
| Rhaetian | Peru | Anomphalus helicoides (68119) | |
| Hettangian | Hungary | Straparollus pygmaeus (125465) |