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Sphaeropegma
Taxonomy
Sphaeropegma was named by Schrammen (1937) [Sepkoski's age data: K u]. It is not extant.
It was assigned to Lithistida by Sepkoski (2002); and to Lecanellidae by Finks et al. (2004).
It was assigned to Lithistida by Sepkoski (2002); and to Lecanellidae by Finks et al. (2004).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1937 | Sphaeropegma Schrammen |
| 2002 | Sphaeropegma Sepkoski |
| 2004 | Sphaeropegma Finks et al. |
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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
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Whittington et al. 1997 | |||||
Age range: base of the Middle Oxfordian to the top of the Early/Lower Kimmeridgian or 161.50000 to 152.21000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Oxfordian - Late/Upper Oxfordian | Germany | Lecanella nuda (74033) | |
| Early/Lower Kimmeridgian | Germany | Lecanella nuda (74037) |