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Rhipidium
Taxonomy
Rhipidium was named by Schuchert and Cooper (1931) [Sepkoski's age data: S Wenl-l S Ludl-l Sepkoski's reference number: 25,27,538]. It is not extant. Its type is Pentamerus knappi.
It was assigned to Pentamerinae by Bassett and Cocks (1974); to Pentamerida by Sepkoski (2002); and to Pentameridae by Williams et al. (2002).
It was assigned to Pentamerinae by Bassett and Cocks (1974); to Pentamerida by Sepkoski (2002); and to Pentameridae by Williams et al. (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 1931 | Rhipidium Schuchert and Cooper |
| 1974 | Rhipidium Bassett and Cocks |
| 2002 | Rhipidium Sepkoski |
| 2002 | Rhipidium Williams et al. p. 983 |
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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. †Rhipidium Schuchert and Cooper 1931
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Subg. †Rhipidium (Ectorhipidium) Boucot and Johnson 1979
Subg. †Rhipidium (Pararhipidium) Boucot and Johnson 1979
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†Rhipidium (Pararhipidium) filicostatum Boucot et al. 1988
†Rhipidium knappi Hall and Whitfield 1872
†Rhipidium tenuistriatum Lindström 1880
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Hendy 2009, Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: base of the Sheinwoodian to the top of the Ludfordian or 433.40000 to 423.00000 Ma
Collections (25 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Sheinwoodian | Sweden (Gotland) | R. tenuistriatum (13525 13527) | |
| Sheinwoodian | Canada (Northwest Territories) | R. sp. (26011) | |
| Sheinwoodian | Canada (Nunavut) | R. sp. (26003 26009 26014) | |
| Wenlock | Sweden (Gotland) | R. tenuistriatum (192326) | |
| Wenlock | Australia (New South Wales) | R. sp. (24909) | |
| Wenlock | USA (Iowa) | R. sp. (25034) | |
| Wenlock | Russian Federation | R. triangulum (23772) | |
| Wenlock | USA (California) | R. filicostatum (226732) R. sp. (225990 225994) | |
| Wenlock - Ludlow | USA (Illinois) | R. sp. (26704) | |
| Wenlock - Ludlow | Canada (Northwest Territories) | R. sp. (188813 188831) R. sp. A (188838) R. sp. B (188823) | |
| Gorstian | Czech Republic | R. sp. (14106) | |
| Ludlow | Australia (New South Wales) | R. sp. (25647) | |
| Ludlow | Russian Federation | R. sp. (23763) | |
| Ludlow | Canada (Ontario) | R. sp. (14196) | |
| Ludlow | Canada (Northwest Territories) | R. sp. (188871 188874) | |
| Ludfordian | USA (Indiana) | R. sp. (6706) |