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Platystrophia ponderosa
Taxonomy
Platystrophia ponderosa was named by Foerste (1909). It is a 3D body fossil.
It was recombined as Vinlandostrophia ponderosa by Zuykov and Harper (2007).
It was recombined as Vinlandostrophia ponderosa by Zuykov and Harper (2007).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1909 | Platystrophia ponderosa Foerste pp. 225 - 226 figs. Plate IV, Fig. 14 |
| 1979 | Platystrophia ponderosa Alberstadt pp. B16-B18 figs. Plate 1, figures 1-21; plate 2, figures 1-27; plate 4, figures 16, 18-33 |
| 2007 | Vinlandostrophia ponderosa Zuykov and Harper pp. 29 - 30 figs. Plate II, figures 17-20; Figure 2A,B |
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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.
†Platystrophia ponderosa Foerste 1909
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. F. Foerste 1909 | Platystrophia ponderosa is characterized by its large size, thick valves, and quadrangular outline; the brachial valve has a prominent, though rather rounded, median fold, usually occupied by four plications. The sinus on the pedicel valve is broad, not very deep, and is occupied usually by three plications. The lateral plications vary between 7 and 9. Sometimes 6 plications occupy the median fold. The shell is greatly thickened interiorly, especially around the deep muscular scar in the pedicel valve. | |
| L. P. Alberstadt 1979 | Vinlandostrophia species having shells quadrate to subquadrate in outline, with maximum width in anterior third of shell; radial ornament of angular costate, three costae in sulcus, four on fold and six to eight costae on flanks of both valves; ventral sulcus and dorsal fold prominent, shallow to moderately deep; septalium V-shaped. |
Measurements
No measurements are available
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| Source: g = genus, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004, Hendy et al. 2009 | |||||
Age range: base of the Maysvillian to the top of the Caradoc or 450.20000 to 449.50000 Ma
Collections (210 total)