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Amaurotoma subangulatum
Taxonomy
Pleurotomaria subangulata was named by Hall (1856). It is a 3D body fossil. Its type locality is Spergen Hill, near railroad station at Harristown, southeast of Salem, which is in a Meramecian carbonate limestone in the Salem Formation of Indiana.
It was recombined as Cyclonema subangulatum by Cummings and Beede (1906) and Bell (1929); it was recombined as Yunnania subangulatum by Knight (1933); it was recombined as Amaurotoma subangulatum by Wagner (2023).
It was recombined as Cyclonema subangulatum by Cummings and Beede (1906) and Bell (1929); it was recombined as Yunnania subangulatum by Knight (1933); it was recombined as Amaurotoma subangulatum by Wagner (2023).
Synonymy list
| Year | Name and author |
|---|---|
| 1856 | Pleurotomaria subangulata Hall pp. 25 - 26 |
| 1858 | Pleurotomaria subangulata Hall pp. 266 - 267 |
| 1906 | Cyclonema subangulatum Cummings and Beede p. 1345 figs. pl. 25 f. 32 |
| 1929 | Cyclonema subangulatum Bell p. 176 figs. pl. 31 f. 3-3a, 4-4a, 5-6 |
| 1933 | Yunnania subangulatum Knight p. 39 |
| 2023 | Amaurotoma subangulatum Wagner p. 3833 |
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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.
†Amaurotoma subangulatum Hall 1856
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, superf = superfamily, c = class | |||||
| References: Bandel et al. 2002, Kiessling 2004, Bambach et al. 2007 | |||||
Age range: Meramecian or 343.00000 to 335.50000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Meramecian | USA (Indiana) | Pleurotomaria subangulata (129910 129930) |