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Strophonella extensa
Taxonomy
Amphistrophia extensa was named by Northrop (1939). Its type specimen is YPM and is a 3D body fossil. Its type locality is Northrop Locality 010. Mouth of Chouinard Brook, Gascons, which is in a Gleedonian carbonate limestone in the Gascons Formation of Canada.
It was recombined as Strophonella extensa by Kulkov et al. (1985).
It was recombined as Strophonella extensa by Kulkov et al. (1985).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1939 | Amphistrophia extensa Northrop p. 178 figs. Plate 16, figure 14 |
| 1985 | Strophonella extensa Kulkov et al. p. 195 |
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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.
†Strophonella extensa Northrop 1939
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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, p = phylum, uc = unranked clade | |||||
| References: Hendy 2009, Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Gleedonian | Canada (Quebec) | Amphistrophia extensa (type locality: 157356) |