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Ischyrotoma borealis
Taxonomy
Ischyrophyma borealis was named by Fortey (1980) [Questionably assigned to genus by author.]. Its type specimen is SM A 84343, a pygidium, and it is a 3D body fossil.
It was recombined as Ischyrotoma borealis by Adrain et al. (2001).
It was recombined as Ischyrotoma borealis by Adrain et al. (2001).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1980 | Ischyrophyma borealis Fortey p. 67 figs. Pl. 12, figs. 2, 3, 5 |
| 2001 | Ischyrotoma borealis Adrain et al. p. 953 |
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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.
†Ischyrotoma borealis Fortey 1980
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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: Hendy 2009, Fortey and Owens 1999, Alvarez et al. 2008, Aberhan et al. 2004 | |||||
Age range: Whiterockian or 471.30000 to 457.30000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Whiterockian | Norway (Spitsbergen) | Ischyrophyma borealis (106480) |