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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Isognomon (Semignomon) tabasicum was named by Repin (2013). Its type specimen is VNIGRI 837/96, a shell, and it is a 3D body fossil. Its type locality is Kamar-Mehdi Range, Tabas region, which is in a Bajocian carbonate limestone in the Badamu Formation of Iran.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2013 | Isognomon (Semignomon) tabasicum Repin p. 563 figs. Pl 2, figs 1,5 |
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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.
†Isognomon (Semignomon) tabasicum Repin 2013
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| valve height | 1 | 130.0 |
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| Source: g = genus, f = family, superf = superfamily, o = order, c = class | |||||
| References: Kiessling 2004, Aberhan et al. 2004, Sanchez Roig 1926, Hendy et al. 2009 | |||||
Age range: Early/Lower Bajocian or 171.60000 to 168.40000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Bajocian | Iran | Isognomon tabasicum (type locality: 152616) |