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Retispira modesta
Taxonomy
Bucanopsis modesta was named by Girty (1909). It is not a trace fossil.
It was recombined as Knightites (Retispira) modesta by Yochelson (1960); it was recombined as Knightites (Retispira) modestus by Winters (1963); it was recombined as Retispira modesta by Kulas and Batten (1997), Mazaev (2019) and Wagner (2023).
It was recombined as Knightites (Retispira) modesta by Yochelson (1960); it was recombined as Knightites (Retispira) modestus by Winters (1963); it was recombined as Retispira modesta by Kulas and Batten (1997), Mazaev (2019) and Wagner (2023).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1909 | Bucanopsis modesta Girty pp. 103 - 104 figs. pl. 11 f. 11 |
| 1952 | Retispira undulata Chronic p. 113 figs. Pl 2, figs 1a,b |
| 1960 | Knightites (Retispira) modesta Yochelson pp. 275 figs. Pl 56, figs 15-32 |
| 1963 | Knightites (Retispira) modestus Winters pp. 29 - 30 figs. pl. 2 f. 1a, 2c |
| 1997 | Retispira modesta Kulas and Batten p. 38 figs. pl. 14 A-B, 15 |
| 2019 | Retispira modesta Mazaev p. 1258 figs. 18c-h |
| 2023 | Retispira modesta Wagner p. 5863 |
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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.
†Retispira modesta Girty 1909
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Invalid names: Retispira undulata Chronic 1952 [synonym]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 7 | 11.9 | 5.30 | 30.0 | 11.0 | 9.05 |
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| Source: f = family, o = order, c = class | |||||
| References: Kiessling 2004, Hendy 2009 | |||||
Age range: base of the Asselian to the top of the Wuchiapingian or 298.90000 to 254.17000 Ma
Collections (22 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Asselian | Russian Federation (Bashkortostan) | Retispira modesta (202159 220885) | |
| Kungurian | USA (Wyoming) | Retispira modesta (61953) | |
| Kungurian | USA (Texas) | Knightites modesta (43513 43515 43517 75884 81630 121484 121485) Retispira modesta (81711 81942) | |
| Kungurian | USA (Arizona) | Knightites modestus (52898 120746 120747) Retispira modesta (95353) | |
| Roadian | USA (Texas) | Knightites modesta (43512 81640) | |
| Roadian | USA (Arizona) | Retispira undulata (39998 40000) | |
| Roadian | USA (Wyoming) | Retispira modesta (61938) | |
| Wuchiapingian | USA (Wyoming) | Retispira modesta (121327) |