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Cymakra intermedia
Taxonomy
Mitromorpha intermedia was named by Arnold (1903). It is extant. Its type locality is Deadman Island area - Lower San Pedro Series (1900s-1950s) [San Pedro Sand], which is in a Pleistocene coastal sandstone in the San Pedro Sand Formation of California.
It was recombined as Mitromorpha filosa intermedia by Berry (1908); it was recombined as Mitromorpha gracilior intermedia by Dall (1921); it was synonymized subjectively with Mangelia (Mitromorpha) gracilior by Grant and IV and Gale (1931); it was recombined as Cymakra intermedia by Hendy (2021).
It was recombined as Mitromorpha filosa intermedia by Berry (1908); it was recombined as Mitromorpha gracilior intermedia by Dall (1921); it was synonymized subjectively with Mangelia (Mitromorpha) gracilior by Grant and IV and Gale (1931); it was recombined as Cymakra intermedia by Hendy (2021).
Synonymy list
| Year | Name and author |
|---|---|
| 1903 | Mitromorpha intermedia Arnold p. 223 figs. pl. 4, fig. 10 |
| 1908 | Mitromorpha filosa intermedia Berry p. 38 |
| 1921 | Mitromorpha gracilior intermedia Dall p. 87 |
| 1950 | Mitromorpha intermedia Woodring and Bramlette p. 48 |
| 2021 | Cymakra intermedia Hendy |
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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.
Cymakra intermedia Arnold 1903
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: superf = superfamily, c = class | |||||
| References: Hendy et al. 2009, Kiessling 2004 | |||||
Age range: base of the Gelasian to the top of the Middle Pleistocene or 2.58000 to 0.12900 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Gelasian | USA (California) | Mitromorpha intermedia (189765 189768) | |
| Early/Lower Pleistocene | USA (California) | Mitromorpha intermedia (202496) | |
| Middle Pleistocene | USA (California) | Mitromorpha intermedia (222663) |