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Hystriculina sulcata
Taxonomy
Hystriculina sulcata was named by Cooper and Grant (1975). Its type specimen is USNM 149718b, a shell (Articulated shell), and it is not a trace fossil.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1975 | Hystriculina sulcata Cooper and Grant p. 982 figs. Pl 233, figs 1-39 |
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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.
†Hystriculina sulcata Cooper and Grant 1975
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 19 | 6.45 | 2.40 | 10.8 | 7.50 | 2.02 |
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| Source: subo = suborder, c = class, p = phylum, uc = unranked clade | |||||
| References: Williams et al. 2000, Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: base of the Gzhelian to the top of the Artinskian or 303.70000 to 283.30000 Ma
Collections (22 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Gzhelian | USA (Texas) | Hystriculina sulcata (43476 43477 43483 43484 43485 43486 43488 43507 43523 43538) | |
| Asselian | USA (Texas) | Hystriculina sulcata (43468 43474 43475 43481 43482 75952) | |
| Sakmarian | USA (Texas) | Hystriculina sulcata (43528 43530 43571 43603) | |
| Artinskian | USA (Texas) | Hystriculina sulcata (75954 105759) |