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Limipecten greerensis
Taxonomy
Limipecten greerensis was named by Busanus and Hoare (1991). Its type specimen is USNM 452292, a shell (right valve), and it is a 3D body fossil. Its type locality is Interbedded shales & limestones, Reynolds Limestone, Greer Limestone Co. quarry, which is in a Chesterian marine shale/limestone in the Reynolds Limestone Formation of West Virginia.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1991 | Limipecten greerensis Busanus and Hoare pp. 471 – 472 figs. 4.6 – 4.15 |
| 1993 | Limipecten greerensis Hoare pp. 384 – 385 fig. 5.1 |
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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.
†Limipecten greerensis Busanus and Hoare 1991
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. W. Busanus and R. D. Hoare 1991 | Limipecten with numerous equidimensional, body costae crossed by fine, imbricated, comarginal, growth lamellae forming a reticulate pattern; large auricles with numerous costae; large, elongate, ligament pit in right valve; subcircular, nearly acline.
Right valve subcircular, acline to slightly prosocline, moderately convex; length/height ratio ranges from 0.70 to 1.10 depending upon size; anterior and ventral margins evenly convex, posterior margin more broadly convex; anterior auricle separated from shell body by deep byssal notch; shorter, posterior auricle set off by shallow, concave sinus; body ornamentation of up to 80 nearly equal-sized, narrowly rounded, fine, radial costae, increasing by intercalation, separated by narrower intercostal grooves; anterior auricle with 6-8 costae, posterior auricle with 11-15 costae; costae crossed by regularly spaced, fine, imbricated, raised, comarginal, growth lamellae; ligamental pit long. Left valve subcircular, moderately convex, with hinge length less than valve length; anterior auricle shorter than posterior auricle, both separated from shell body by concave marginal sinuses; posterior margin ventral to auricular sinus nearly straight before rounding convexly into ventral margin; shell body ornamented by up to 85 nearly equal-sized, narrowly rounded, fine costae, which increase by bifurcation; anterior and posterior auricles with up to 20 costae each; valve surface crossed by numerous, more or less equally spaced, raised, comarginal lamellae forming a reticulate pattern with the costae. | |
| R. D. Hoare 1993 | Limipecten of medium size; left valve with over 58 rounded, closely spaced, body costae; costae crossed by nu-merous more or less equally spaced, raised, comarginal lamellae forming a reticulate network with the costae; posterior auricle with at least six costae; other features unknown. |