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Eriptychius
Taxonomy
Eriptychius was named by Walcott (1892) [Sepkoski's age data: O Cara-l O Cara-u Sepkoski's reference number: 2,450]. Its type is Eriptychius americanus.
It was assigned to Holoptychiidae by Hay (1902); to Pteraspidomorphes by Sepkoski (2002); to Astraspidiformes by Sansom and Smith (2005); and to Eriptychiidae by Van Der Laan (2019).
It was assigned to Holoptychiidae by Hay (1902); to Pteraspidomorphes by Sepkoski (2002); to Astraspidiformes by Sansom and Smith (2005); and to Eriptychiidae by Van Der Laan (2019).
Species
E. americanus (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1892 | Eriptychius Walcott |
| 1902 | Eriptychius Hay p. 359 |
| 2002 | Eriptychius Sepkoski |
| 2005 | Eriptychius Sansom and Smith p. 41 |
| 2019 | Eriptychius Van Der Laan p. 16 |
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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: subp = subphylum, p = phylum | |||||
| Reference: Kiessling 2004 | |||||
Age range: base of the Franklinian to the top of the Caradoc or 457.30000 to 449.50000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Caradoc | USA (Colorado) | E. americanus (10380) | |
| Franklinian | USA (Colorado) | E. americanus (155756) | |
| Franklinian | Canada (Ontario) | E. sp. (90381 90409) | |
| Richmondian | USA (Wyoming) | E. americanus (65239) |