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Procolumbites
Taxonomy
Procolumbites was named by Astachova (1960) [Sepkoski's age data: Tr Olen-u Sepkoski's reference number: 302]. It is not extant. Its type is Procolumbites karataucicus.
It was assigned to Paranannitidae by Kummel (1969); to Ceratitida by Sepkoski (2002); and to Columbitidae by Tozer (1981), Zakharov and Popov (2014), Ji et al. (2015).
It was assigned to Paranannitidae by Kummel (1969); to Ceratitida by Sepkoski (2002); and to Columbitidae by Tozer (1981), Zakharov and Popov (2014), Ji et al. (2015).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1960 | Procolumbites Astachova |
| 1969 | Procolumbites Kummel |
| 1981 | Procolumbites Tozer p. 92 |
| 2002 | Procolumbites Sepkoski |
| 2014 | Procolumbites Zakharov and Popov p. 7 |
| 2015 | Procolumbites Ji et al. |
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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.
G. †Procolumbites Astachova 1960
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†Procolumbites karataucicus Astachova 1968
†Procolumbites safraensis Brühwiler and Bucher 2012
†Procolumbites subquadratus Zakharov 1968
†Procolumbites ussuriensis Zakharov 1968
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 19 | 10.6 | 6.00 | 17.0 | 11.0 | 2.08 | |
| shell diameter | 19 | 33.6 | 17.0 | 47.5 | 34.0 | 6.35 | |
| shell inflation | 19 | 14.8 | 7.00 | 19.5 | 15.5 | 3.14 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: Spathian or 248.10000 to 246.70000 Ma
Collections (25 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Olenekian | Kazakhstan | P. karatauchicus (72331 72422) P. karataucicus (72332) | |
| Spathian | USA (Idaho) | P. karataucicus (109408 109409 109411 123896 123897) | |
| Spathian | Oman | P. safraensis (127433) | |
| Spathian | Russian Federation | P. subquadratus (151082) | |
| Spathian | Russian Federation (Primorye) | Columbites ussuriensis (47253 47291 47293 47316 47317 47320) Columbites ussuriensis, P. subquadratus (47295) P. subquadratus (47294) | |
| Spathian | Japan | Columbites parisianus (186959 186963) P. sp. (236967) P. ussuriensis (236954) P. ussuriensis, P. subquadratus (226907) | |
| Spathian | China (Anhui) | P. sp. (216988) | |
| Spathian | Kazakhstan | P. karataucikus (213181) |