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Rhactorhynchia humilis
Taxonomy
Cymatorhynchia humilis was named by Buckman (1917). It is a 3D body fossil. Its type locality is Stoford (murchisonae zone), which is in a Murchisonae marine horizon in the United Kingdom.
It was recombined as Rhactorhynchia humilis by Kamyshan and Babanova (1973).
It was recombined as Rhactorhynchia humilis by Kamyshan and Babanova (1973).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1917 | Cymatorhynchia humilis Buckman p. 229 figs. Pl. 17, Fig. 15 |
| 1973 | Rhactorhynchia humilis Kamyshan and Babanova p. 86 figs. Pl. 9, Fig. 13 |
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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.
†Rhactorhynchia humilis Buckman 1917
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| shell height | 1 | 12.3 |
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: base of the Concavum to the top of the Early/Lower Bajocian or 174.70000 to 168.60000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Concavum | Russian Federation | Rhactorhynchia humilis (162871) | |
| Murchisonae | United Kingdom | Cymatorhynchia humilis (171139) | |
| Early/Lower Bajocian | Russian Federation | Rhactorhynchia humilis (162868) | |
| Discites | Russian Federation | Rhactorhynchia humilis (162845) |