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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Sanniolus
Taxonomy
Sanniolus was named by Sohn (1954) [Sepkoski's age data: P Leon-l P Leon-u]. Its type is Sanniolus sigmoides.
It was assigned to Miltonellidae by Sohn (1954), Benson et al. (1961); and to Palaeocopida by Sepkoski (2002).
It was assigned to Miltonellidae by Sohn (1954), Benson et al. (1961); and to Palaeocopida by Sepkoski (2002).
Species
S. sigmoides (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1954 | Sanniolus Sohn |
| 1961 | Sanniolus Benson et al. p. Q187 |
| 2002 | Sanniolus 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.
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| valve height | 2 | 0.590 | 0.440 | 0.790 | 0.615 | 0.247 |
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| Source: o = order, c = class | |||||
| References: Alvarez et al. 2008, Kiessling 2004 | |||||
Age range: base of the Artinskian to the top of the Kungurian or 290.10000 to 274.40000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Artinskian | USA (Texas) | S. sigmoides (117948) | |
| Kungurian | USA (Texas) | S. sigmoides (43517) |