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Spanionema
Taxonomy
Spanionema was named by Whidborne (1891) [Sepkoski's age data: D m Sepkoski's reference number: 1].
It was assigned to Procerithiidae by Knight et al. (1960); to Palaeozygopleuridae by Heidelberger (2001); to Neotaenioglossa by Sepkoski (2002); to Subulitidae by Krawczyński (2002); and to Spanionematidae by Bouchet et al. (2005).
It was assigned to Procerithiidae by Knight et al. (1960); to Palaeozygopleuridae by Heidelberger (2001); to Neotaenioglossa by Sepkoski (2002); to Subulitidae by Krawczyński (2002); and to Spanionematidae by Bouchet et al. (2005).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1891 | Spanionema Whidborne |
| 1960 | Spanionema Knight et al. p. 317 |
| 2001 | Spanionema Heidelberger |
| 2002 | Spanionema Krawczyński |
| 2002 | Spanionema Sepkoski |
| 2005 | Spanionema Bouchet et al. p. 161 |
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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. †Spanionema Whidborne 1891
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†Spanionema scalaroides Whidborne 1889
†Spanionema varicosa Holzapfel 1895
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class | |||||
| Reference: Kiessling 2004 | |||||
Age range: base of the Early/Lower Frasnian to the top of the Middle Frasnian or 383.70000 to 379.50000 Ma
Collections (7 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Givetian | United Kingdom (England) | Loxonema scalaroides (130270) | |
| Givetian | Germany (Sauerland) | S. varicosa (51967) | |
| Givetian | Germany (Hessen) | S. scalaroides (38353) | |
| Givetian | Germany (Rheinland-Pfalz) | S. scalaroides (38358) | |
| Early/Lower Frasnian | Poland (Swietokrzyskie Voivodship) | S. scalaroides (75507) | |
| Middle Frasnian | Poland (Wojewodztwo Swietokrzyskie) | S. scalaroides (62174) | |
| Middle Frasnian | Poland (Swietokrzyskie Voivodship) | S. scalaroides (75515) |