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Hebertella prestonensis
Taxonomy
Hebertella sinuata prestonensis was named by Ladd (1929). Its type specimen is SUI 66503 and is a 3D body fossil.
It was recombined as Hebertella prestonensis by Wright and Stigall (2013).
It was recombined as Hebertella prestonensis by Wright and Stigall (2013).
Synonymy list
| Year | Name and author |
|---|---|
| 1929 | Hebertella sinuata prestonensis Ladd p. 401 figs. pl. 5, figs. 3–6. |
| 2013 | Hebertella prestonensis Wright and Stigall p. 1125 figs. 7.4, 7.5 |
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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.
†Hebertella prestonensis Ladd 1929
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. F. Wright and A. L. Stigall 2013 | Large to very large species of Hebertella characterized by a highly developed sulcus and obtuse ventral umbonal opening (≤140˚). Shell subquadrate; inflated dorsal and ventral valves, ventral valve with medial depression; sulcus very deep, narrow, many costae (≥17) inserted between inflection points; ventral interarea strongly catacline; ventral muscle scars wide; dorsal umbo strongly apsacline. |
Measurements
No measurements are available
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| Source: g = genus, o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013, Hendy 2009 | |||||
Age range: Richmondian or 449.60000 to 445.50000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Richmondian | USA (Iowa) | Hebertella sinuata (type locality: 219794) |