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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Illaenus tumidifrons
Taxonomy
Illaenus tumidifrons was named by Billings (1865) [Lectotype selected by Whittington 1963]. Its type specimen is GSC 662j (lectotype), an exoskeleton, and it is a 3D body fossil.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1865 | Illaenus tumidifrons Billings p. 278 figs. 264 b |
| 1925 | Illaenus tumidifrons Raymond p. 111 |
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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 tumidifrons 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: Aberhan et al. 2004, Harrington et al. 1959, Hendy et al. 2009 | |||||
Age range: base of the Early/Lower Ordovician to the top of the Whiterockian or 485.40000 to 457.30000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Ordovician | Canada (Newfoundland) | Illaenus tumidifrons (198245) | |
| Whiterockian | Canada (Newfoundland and Labrador) | Illaenus tumidifrons (104752) |