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Bilaminella
Taxonomy
Bilaminella was named by Babanova (1964) [Sepkoski's age data: J Call Sepkoski's reference number: 538]. It is the type genus of Bilaminellinae.
It was assigned to Rhynchonellida by Sepkoski (2002); and to Bilaminellinae by Williams et al. (2002).
It was assigned to Rhynchonellida by Sepkoski (2002); and to Bilaminellinae by Williams et al. (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1964 | Bilaminella Babanova p. 66 |
| 2002 | Bilaminella Sepkoski |
| 2002 | Bilaminella Williams et al. p. 1298 |
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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.
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 2 | 6.00 | 5.90 | 6.10 | 6.00 | 0.141 |
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: Late/Upper Callovian or 165.30000 to 161.50000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Callovian | Ukraine | B. inaequicostata (162583 162584) |