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Cactosteges
Taxonomy
Cactosteges was named by Cooper and Grant (1975) [Sepkoski's age data: P Leon-u P Guad-l Sepkoski's reference number: 7]. Its type is Cactosteges anomalus.
It was assigned to Rhamnariinae by Williams et al. (2000); and to Strophomenida by Sepkoski (2002).
It was assigned to Rhamnariinae by Williams et al. (2000); and to Strophomenida by Sepkoski (2002).
Species
C. anomalus (type species)
Synonymy list
Year | Name and author |
---|---|
1975 | Cactosteges Cooper and Grant pp. 850-852 |
2000 | Cactosteges Williams et al. p. 605 |
2002 | Cactosteges Sepkoski |
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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. †Cactosteges Cooper and Grant 1975
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†Cactosteges anomalus Cooper and Grant 1975
Diagnosis
No diagnoses are available
Measurements
part | N | mean | minimum | maximum | median | s.d. | |
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shell height | 9 | 5.93 | 4.10 | 10.7 | 5.40 | 2.09 |
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Source: subo = suborder, c = class, p = phylum, uc = unranked clade | |||||
References: Nesnidal et al. 2013, Aberhan et al. 2004, Williams et al. 2000 |
Age range: Roadian or 272.30000 to 268.80000 Ma
Collections (17 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Roadian | USA (Texas) | C. anomalus (43548 43551 43553 81645 81650 101783 102610 102614 105592 105743 105750 105806 105850 105887 105932 106123) | |
Roadian - Wordian | USA (Texas) | C. anomalus (102630) |