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Compressoproductus parvus
Taxonomy
Compressoproductus parvus was named by Cooper and Grant (1975). Its type specimen is USNM 151560a, a valve (Ventral valve), and it is not a trace fossil.
Synonymy list
| Year | Name and author |
|---|---|
| 1975 | Compressoproductus parvus Cooper and Grant p. 1207 figs. Pl 459, figs 9-31 |
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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.
†Compressoproductus parvus Cooper and Grant 1975
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 3 | 2.75 | 2.30 | 3.00 | 3.00 | 0.404 |
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| Source: subo = suborder, c = class, p = phylum, uc = unranked clade | |||||
| References: Williams et al. 2000, Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: base of the Artinskian to the top of the Kungurian or 290.10000 to 274.40000 Ma
Collections (13 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Artinskian | USA (Texas) | Compressoproductus parvus (43564) | |
| Artinskian - Kungurian | USA (Texas) | Compressoproductus parvus (105972 106033) | |
| Kungurian | USA (Texas) | Compressoproductus parvus (43562 43586 75920 75923 75926 105724 105727 105745 105818 106030) |