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Taxonomy
Asaphus (Isotelus) gigas was named by Dekay (1824). It is the type species of Isotelus.
It was recombined as Asaphus gigas by Nicholson and Etheridge (1880); it was recombined as Isotelus gigas by Bigsby (1868) and Jell and Adrain (2002).
It was recombined as Asaphus gigas by Nicholson and Etheridge (1880); it was recombined as Isotelus gigas by Bigsby (1868) and Jell and Adrain (2002).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1824 | Asaphus (Isotelus) gigas Dekay |
| 1868 | Isotelus gigas Bigsby p. 56 |
| 1880 | Asaphus gigas Nicholson and Etheridge pp. 153 - 154 figs. PI. X., figs. 18, 19 |
| 2002 | Isotelus gigas Jell and Adrain p. 389 |
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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.
†Asaphus gigas Dekay 1824
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, o = order, c = class | |||||
| References: Aberhan et al. 2004, Hendy 2009, Hendy et al. 2009 | |||||
Age range: Maysvillian or 450.20000 to 449.60000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Maysvillian | Canada (Manitoba) | Asaphus gigas (174050) |