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Sphenalosia
Taxonomy
Sphenalosia was named by Muir-Wood and Cooper (1960) [Sepkoski's age data: P Leon P Guad Sepkoski's reference number: 1,40]. Its type is Sphenalosia smedleyi.
It was assigned to Heteralosiinae by Muir-Wood and Cooper (1960); to Strophalosiinae by Williams et al. (2000); and to Strophomenida by Sepkoski (2002).
It was assigned to Heteralosiinae by Muir-Wood and Cooper (1960); to Strophalosiinae by Williams et al. (2000); and to Strophomenida by Sepkoski (2002).
Species
S. smedleyi (type species)
Synonymy list
Year | Name and author |
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1960 | Sphenalosia Muir-Wood and Cooper p. 87 |
2000 | Sphenalosia Williams et al. p. 569 |
2002 | Sphenalosia 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. †Sphenalosia Muir-Wood and Cooper 1960
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†Sphenalosia smedleyi Muir-Wood and Cooper 1960
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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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: base of the Capitanian to the top of the Wuchiapingian or 264.28000 to 254.14000 Ma
Collections (5 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Wordian - Capitanian | Canada (Alberta) | S. smedleyi (112837) | |
Wordian - Capitanian | Canada (British Columbia) | S. smedleyi (112836) | |
Capitanian | Mexico (Coahuila) | S. sp. (200254) | |
Wuchiapingian | USA (Wyoming) | S. smedleyi (151257) S. sp. (61936) |