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Pyramidaspirifer
Taxonomy
Pyramidaspirifer was named by Ma and Day (2000). Its type is Platyrachella alta.
It was assigned to Cyrtospiriferidae by Ma and Day (2000).
It was assigned to Cyrtospiriferidae by Ma and Day (2000).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 2000 | Pyramidaspirifer Ma and Day p. 459 |
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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. †Pyramidaspirifer Ma and Day 2000
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†Pyramidaspirifer alta Fenton and Fenton 1924
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| X. Ma and J. Day 2000 | Medium to large sized conispiriferid (up to 28 mm in width), with fewer and coarser plications than in Conispirifer; cardinal extremities extended; fold and sinus originating close to dorsal and ventral beaks. |
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Collections
No collection or age range data are available