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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Thedusia biconvexa
Taxonomy
Thedusia biconvexa was named by Cooper and Grant (1976). Its type specimen is USNM 155086b, a shell (Articulated shell), and it is not a trace fossil.
Synonymy list
| Year | Name and author |
|---|---|
| 1976 | Thedusia biconvexa Cooper and Grant p. 2808 figs. Pl 745, figs 70-79 |
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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.
†Thedusia biconvexa Cooper and Grant 1976
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 3 | 3.76 | 3.50 | 4.00 | 3.80 | 0.252 |
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| Source: subo = suborder, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: Capitanian or 264.28000 to 259.51000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Capitanian | USA (Texas) | Thedusia biconvexa (102618) |