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Platystrophia scotica
Taxonomy
Platystrophia scotica was named by Williams (1962) [= Orthis (Platystrophia) biforata (Schlotheim), Reed 1917, p. 845, pl. viii, fig. 24.]. Its type specimen is BB.15810, a valve (Exterior of brachial valve), and it is a 3D body fossil.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1962 | Platystrophia scotica Williams pp. 125 - 126 figs. P1. XI, figs. 20-23 |
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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 scotica Williams 1962
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. Williams 1962 | Transversely quadrate Platystrophia with a flat-bottomed ventral sulcus over half as wide as the length of the pedicle valve and a complementary dorsal fold bearing a pair of primary submedian costae each of which bifurcates at about 5 mm. from the umbo, flanks of fold and sulcus ornamented by 16-20 sharp-crested costae with a wave-length of just over 1 mm.; teeth small, dental lamellae long and subparallel forming lateral boundaries to a muscle-field, almost twice as long as wide, which is deeply impressed on an elevated tongue of secondary shell substance; supporting plates to brachiophores short, convergent onto a small, poorly developed notothyrial platform, dorsal adductor scars lightly impressed, about two-fifths as long as the valve. |
Measurements
No measurements are available
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| Source: g = genus, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Hendy et al. 2009, Nesnidal et al. 2013 | |||||
Collections
No collection or age range data are available