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Tichkaella
Taxonomy
Tichkaella was named by Geyer (1986) [Sepkoski's age data: Cm Boto Cm mMid-l Sepkoski's reference number: 699]. It is not extant.
It was assigned to Helcionellidae by Geyer (1986); to Mollusca by Sepkoski (2002); and to Coreospiridae by Parkhaev (2002).
It was assigned to Helcionellidae by Geyer (1986); to Mollusca by Sepkoski (2002); and to Coreospiridae by Parkhaev (2002).
Species
Synonymy list
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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. †Tichkaella Geyer 1986
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†Tichkaella carinata Rasetti 1957
†Tichkaella hamata Geyer 1986
†Tichkaella insulcata Rasetti 1957
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order, c = class | |||||
| References: Hendy et al. 2009, Hendy 2009 | |||||
Age range: Solvan or 510.20000 to 504.50000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Solvan | Morocco | T. hamata (9122) | |
| Solvan | Canada (British Columbia) | Helcionella carinata, Helcionella insulcata (56703 56721) Helcionella insulcata (56718 56720) |