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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Illaenus fraternus
Taxonomy
Illaenus fraternus was named by Billings (1865) [Lectotype selected by Whittington 1965]. Its type specimen is GSC 665e (lectotype), a cephalon/head (cranidium), and it is a 3D body fossil.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1865 | Illaenus fraternus Billings p. 276 figs. 262a, b |
| 1925 | Illaenus fraternus Raymond p. 105 |
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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.
†Illaenus fraternus Billings 1865
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, o = order, c = class | |||||
| References: Hendy et al. 2009, Harrington et al. 1959, Aberhan et al. 2004 | |||||
Age range: Whiterockian or 470.00000 to 457.30000 Ma
Collections (7 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Whiterockian | USA (Nevada) | Illaenus fraternus (104424) | |
| Whiterockian | Canada (Newfoundland and Labrador) | Illaenus fraternus (104877 104880 104881 104883 104884 104887) |