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Riasanites rjasanensis
Taxonomy
Ammonites rjasanensis was named by Lahusen (1883). It is the type species of Riasanites.
It was recombined as Riasanites rjasanensis by Howarth (1998).
It was recombined as Riasanites rjasanensis by Howarth (1998).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1883 | Ammonites rjasanensis Lahusen p. 69 |
| 1998 | Riasanites rjasanensis Howarth p. 93 |
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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.
†Riasanites rjasanensis Lahusen 1883
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: base of the Tithonian to the top of the Valanginian or 152.10000 to 132.90000 Ma
Collections (7 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Tithonian | Yemen (Wadi Hajar) | Riasanites rjasanensis (2615) | |
| Berriasian | Russian Federation | Riasanites rjasanensis (2510 2523 2524 2528) | |
| Berriasian | Poland | Riasanites rjasanensis (2094) | |
| Valanginian | Russian Federation | Riasanites rjasanensis (2515) |