| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Retroplexus
Taxonomy
Retroplexus is a genus. It is not extant.
It was assigned to Institellinae by Williams et al. (2000); and to Strophomenida by Sepkoski (2002).
It was assigned to Institellinae by Williams et al. (2000); and to Strophomenida by Sepkoski (2002).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2000 | Retroplexus Williams et al. p. 602 |
| 2002 | Retroplexus Sepkoski |
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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.
G. †Retroplexus
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: subo = suborder, c = class, p = phylum, uc = unranked clade | |||||
| References: Williams et al. 2000, Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: base of the Asbian to the top of the Brigantian or 339.90000 to 330.30000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Asbian - Brigantian | United Kingdom (England) | R. cravenensis (28383) |