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Shirakiella
Taxonomy
Shirakiella was named by Kobayashi (1935) [Sepkoski's age data: Cm Fran-u Sepkoski's reference number: 464]. It is not extant. Its type is Shirakiella elongata.
It was assigned to Shirakiellidae by Zhu and Wittke (1989); and to Ptychopariida by Sepkoski (2002).
It was assigned to Shirakiellidae by Zhu and Wittke (1989); and to Ptychopariida by Sepkoski (2002).
Species
S. elongata (type species)
Synonymy list
Year | Name and author |
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1935 | Shirakiella Kobayashi |
1989 | Shirakiella Zhu and Wittke |
2002 | Shirakiella 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.
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: o = order, c = class | |||||
References: Aberhan et al. 2004, Hendy et al. 2009 |
Age range: Taoyuanian or 498.50000 to 485.40000 Ma
Collections (2 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Taoyuanian | China (Hebei) | S. elongata (129601) S. sp. (129596) |