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Brevicula gradus
Taxonomy
Brevicula gradus was named by Whalley (1985). Its type specimen is BMNH In 53993, an exoskeleton, and it is an impression. Its type locality is Flatstones, Black Ven, Charmouth (Jackson collection), which is in an Obtusum marine mudstone in the Charmouth Mudstone Formation of the United Kingdom. It is the type species of Brevicula.
Synonymy list
| Year | Name and author |
|---|---|
| 1985 | Brevicula gradus Whalley p. 117 figs. Figs 3-4 |
| 2016 | Brevicula gradus Xing et al. p. 184 |
| 2018 | Brevicula gradus Kelly et al. p. 137 fig. 11,12 |
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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.
†Brevicula gradus Whalley 1985
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class, p = phylum | |||||
| References: Bush and Bambach 2015, Kiessling 2004 | |||||
Age range: Obtusum or 199.50000 to 192.90000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Obtusum | United Kingdom (England) | Brevicula gradus (type locality: 114639 189404) | |
| Turneri | United Kingdom (Dorset) | Brevicula gradus (189409) |