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Extrania
Taxonomy
Extrania was named by Qian (1983) [Sepkoski's age data: Cm m Sepkoski's reference number: ZR83]. It is not extant.
It was assigned to Lisaniidae by Yang et al. (1993); and to Corynexochida by Sepkoski (2002).
It was assigned to Lisaniidae by Yang et al. (1993); and to Corynexochida by Sepkoski (2002).
Species
Synonymy list
Year | Name and author |
---|---|
1983 | Extrania Qian |
1993 | Extrania Yang et al. |
2002 | Extrania 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: f = family, c = class | |||||
References: Aberhan et al. 2004, Whittington et al. 1997 |
Age range: base of the Wangcunian to the top of the Guzhangian or 504.50000 to 497.00000 Ma
Collections: one only
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Wangcunian - Guzhangian | China (Henan) | E. trigona (127076) |