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Trochonema rugosa
Taxonomy
Trochonema rugosum was named by Ulrich and Scofield (1897). It is not a trace fossil.
It was corrected as Trochonema rugosa by Wagner (1995), Wagner (1999), Wagner (2023).
It was corrected as Trochonema rugosa by Wagner (1995), Wagner (1999), Wagner (2023).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1897 | Trochonema rugosum Ulrich and Scofield |
| 1995 | Trochonema rugosa Wagner p. 177 |
| 1999 | Trochonema rugosa Wagner |
| 2023 | Trochonema rugosa Wagner p. 2140 |
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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.
†Trochonema rugosa Ulrich and Scofield 1897
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, o = order | |||||
| References: Bambach et al. 2007, Hendy 2009 | |||||
Age range: Turinian or 457.30000 to 453.80000 Ma
Collections (8 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Turinian | USA (Wisconsin) | Trochonema rugosum (89018) | |
| Turinian | USA (Minnesota) | Trochonema rugosa (194139) | |
| Blackriveran | USA (Illinois, Iowa) | Trochonema rugosum (23613 23614 23615) | |
| Blackriveran | USA (Minnesota) | Trochonema rugosum (23555 23556) | |
| Blackriveran - Rocklandian | USA (Minnesota) | Trochonema rugosum (23557) |