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Amphiscapha (Amphiscapha)
Taxonomy
Amphiscapha (Amphiscapha) was named by Knight (1942).
It was assigned to Amphiscapha by Yochelson (1956).
It was assigned to Amphiscapha by Yochelson (1956).
Synonymy list
| Year | Name and author |
|---|---|
| 1942 | Amphiscapha (Amphiscapha) Knight |
| 1956 | Amphiscapha (Amphiscapha) Yochelson p. 222 |
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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.
Subg. †Amphiscapha (Amphiscapha) Knight 1942
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†Amphiscapha (Amphiscapha) dextrata Yochelson 1956
†Amphiscapha (Amphiscapha) gigantea Yochelson 1956
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 10 | 6.47 | 2.90 | 11.7 | 7.80 | 3.00 |
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| Source: g = genus, f = family, c = class | |||||
| References: Knight et al. 1960, Kiessling 2004 | |||||
Collections (8 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Sakmarian | USA (New Mexico) | Amphiscapha dextrata (121451) | |
| Sakmarian | USA (Texas) | Amphiscapha gigantea (121464) | |
| Artinskian | USA (Texas) | Amphiscapha dextrata (81683) Amphiscapha gigantea (90007 101769 121330 121374) | |
| Kungurian | USA (Texas) | Amphiscapha gigantea (121369) |