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Eoischyrinia
Taxonomy
Eoischyrinia was named by Kobayashi (1933). Its type is Eoischyrinia billingsi.
It was corrected as Eoischyrina by Pojeta and Runnegar (1976), Sepkoski (2002).
It was assigned to Ischyriniinae by Kobayashi (1933); to Ribeirioida by Sepkoski (2002); and to Ischyriniidae by Pojeta and Runnegar (1976), Wagner (2023).
It was corrected as Eoischyrina by Pojeta and Runnegar (1976), Sepkoski (2002).
It was assigned to Ischyriniinae by Kobayashi (1933); to Ribeirioida by Sepkoski (2002); and to Ischyriniidae by Pojeta and Runnegar (1976), Wagner (2023).
Species
E. billingsi (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1933 | Eoischyrinia Kobayashi p. 298 |
| 1976 | Eoischyrina Pojeta and Runnegar p. 48 |
| 2002 | Eoischyrina Sepkoski |
| 2023 | Eoischyrinia Wagner p. G734 |
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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: c = class | |||||
| Reference: Kiessling 2004 | |||||
Age range: Cressagian or 486.40000 to 481.10000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Cressagian | South Korea (Hwanghae-namdo) | E. billingsi (39398) |