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Franchia
Taxonomy
Zigzagiceras (Franchia) was named by Sturani (1967).
It was reranked as Franchia by Besnosov and Mitta (1993).
It was assigned to Zigzagiceras by Sturani (1967); and to Perisphinctidae by Besnosov and Mitta (1993).
It was reranked as Franchia by Besnosov and Mitta (1993).
It was assigned to Zigzagiceras by Sturani (1967); and to Perisphinctidae by Besnosov and Mitta (1993).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1967 | Zigzagiceras (Franchia) Sturani |
| 1993 | Franchia Besnosov and Mitta p. 112 |
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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. †Franchia Sturani 1967
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†Franchia quenstedti Sibiryakova 1961
†Franchia tlisiense Besnosov 1993
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: Early/Lower Bathonian or 167.70000 to 164.70000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Bathonian | Russian Federation | F. tlisiense (188432 188433) | |
| Early/Lower Bathonian | Turkmenistan | F. quenstedti (187416 188431) |