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Compsonema
Taxonomy
Compsonema was named by Gordon and Yochelson (1983) [Sepkoski's age data: C Serp-l Sepkoski's reference number: 114]. It is not extant. Its type is Compsonema fragile.
It was assigned to Gyronematinae by Gordon and Yochelson (1983); to Archaeogastropoda by Sepkoski (2002); and to Platyceratidae by Wagner (2023).
It was assigned to Gyronematinae by Gordon and Yochelson (1983); to Archaeogastropoda by Sepkoski (2002); and to Platyceratidae by Wagner (2023).
Species
C. fragile (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1983 | Compsonema Gordon and Yochelson |
| 2002 | Compsonema Sepkoski |
| 2023 | Compsonema Wagner p. G1212 |
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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. †Compsonema Gordon and Yochelson 1983
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†Compsonema fragile Gordon and Yochelson 1983
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, superf = superfamily, c = class | |||||
| References: Batten 1984, Knight et al. 1960, Kiessling 2004 | |||||
Age range: Pendleian or 330.90000 to 327.00000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Chesterian | USA (Arkansas) | C. sp. (73201) | |
| Pendleian | USA (Nevada) | C. fragile (5525) |